{"id":1990,"date":"2018-11-03T04:15:17","date_gmt":"2018-11-02T19:15:17","guid":{"rendered":"https:\/\/blog.capilano-fw.com\/?p=1990"},"modified":"2018-11-23T18:32:49","modified_gmt":"2018-11-23T09:32:49","slug":"opencv-%e3%81%ae%e5%9f%ba%e6%9c%ac%e7%9a%84%e3%81%aa%e7%94%bb%e5%83%8f%e5%a4%89%e5%bd%a2%ef%bc%9a-%e5%85%a812%e5%ae%9f%e4%be%8b%ef%bc%81","status":"publish","type":"post","link":"https:\/\/blog.capilano-fw.com\/?p=1990","title":{"rendered":"opencv \u306e\u57fa\u672c\u7684\u306a\u753b\u50cf\u5909\u5f62\uff1a \u516812\u5b9f\u4f8b\uff01"},"content":{"rendered":"<p>\u3055\u3066\u3055\u3066\u3001\u524d\u56de\u306f\u4e45\u3057\u3076\u308a\u306b<a href=\"https:\/\/blog.capilano-fw.com\/?p=1957\">2D\u306e\u9854\u753b\u50cf\u30923D\u5316\u3059\u308b<\/a>\u3068\u3044\u3046Python\u30b3\u30fc\u30c9\u306e\u304a\u8a71\u3092\u304a\u5c4a\u3051\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u500b\u4eba\u7684\u306bPython\u958b\u767a\u3082\u30e1\u30a4\u30f3\u3067\u8acb\u3051\u8ca0\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u6700\u8fd1\u306fLaravel\uff08PHP\uff09\u3084Vue\uff08JavaScript\uff09\u95a2\u9023\u3067\u306e\u958b\u767a\u304c\u591a\u304b\u3063\u305f\u305f\u3081\u3001\u4e45\u3057\u3076\u308a\u306bPython\u3092\u3055\u308f\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3057\u305f\u3002\uff08\u3068\u3044\u3063\u3066\u3082\u524d\u56de\u306f<code>git clone<\/code>\u3057\u305f\u3060\u3051\u3067\u3059\u304c ^^;\uff09<\/p>\n<p>\u3059\u308b\u3068\u3001\u307e\u305fPython\u3082\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3057\u305f\u304f\u306a\u3063\u3066\u304d\u305f\u306e\u3067\u3001\u4ee5\u524d\u3053\u306e\u30d6\u30ed\u30b0\u3067\u6295\u7a3f\u3057\u305f<a href=\"https:\/\/blog.capilano-fw.com\/?p=1574\">\u5b8c\u5168\u7db2\u7f85\uff01Intervention Image\uff08PHP\uff09\u3067\u753b\u50cf\u3092\u7de8\u96c6\u3059\u308b\u5168\u5b9f\u4f8b<\/a>\u306e\u3088\u3046\u306b\u3001Python\u306e\u753b\u50cf\u51e6\u7406\u30fb\u5b9a\u756a\u30d1\u30c3\u30b1\u30fc\u30b8<code>OpenCV<\/code>\u306e\u57fa\u672c\u7684\u306a\u753b\u50cf\u5909\u5f62\uff08\u30ea\u30b5\u30a4\u30ba\u3001\u56de\u8ee2\u3001\u6c34\u5e73\u79fb\u52d5\u3001\u53cd\u8ee2\u3001\u5207\u308a\u629c\u304d\u3001\u633f\u5165\u3001\u30e2\u30b6\u30a4\u30af\u3001\u307c\u304b\u3057\u3001\u30b7\u30e3\u30fc\u30d7\u30cd\u30b9\u3001\u660e\u308b\u3055\u3001\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3001\u8272\u53cd\u8ee2\u3001\u900f\u904e\uff09\u3092\u307e\u3068\u3081\u3066\u307f\u308b\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>Python\u306f\u6a5f\u68b0\u5b66\u7fd2\u306e\u5f71\u97ff\u3082\u3042\u3063\u3066\u4e16\u754c\u7684\u306b\u4eba\u6c17\u306e\u8a00\u8a9e\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u5b66\u7fd2\u8005\u3055\u3093\u306f\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u306d\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-461 aligncenter\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/04\/38.png\" alt=\"\" width=\"294\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/04\/38.png 294w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/04\/38-276x300.png 276w\" sizes=\"auto, (max-width: 294px) 100vw, 294px\" \/><\/p>\n<p>\u958b\u767a\u74b0\u5883\uff1a Python 2.7, OpenCV 3.4<\/p>\n<h1>\u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/h1>\n<p>\u4eca\u56de\u306e\u4f8b\u3067\u306fOpenCV\u672c\u4f53\u3068\u3001\u8a08\u7b97\u3092\u697d\u306b\u3057\u3066\u304f\u308c\u308b<code>numpy<\/code>\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e<code>pip<\/code>\u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre><strong>pip install opencv-python\r\npip install numpy<\/strong><\/pre>\n<p>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3089<code>pip list<\/code>\u3092\u5b9f\u884c\u3057\u3066\u3001<code>opencv-python<\/code>\u3001<code>numpy<\/code>\u304c\u542b\u307e\u308c\u3066\u3044\u308c\u3070\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306f\u6210\u529f\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1992\" style=\"border: 1px solid #ccc;\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/Screenshot-from-2018-11-02-00-33-03.png\" alt=\"\" width=\"734\" height=\"433\" \/><\/p>\n<p>\u3061\u306a\u307f\u306b<code>Python<\/code>\u3067<code>OpenCV<\/code>\uff08\u3068\u5fc5\u8981\u306b\u306a\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\uff09\u3092\u5229\u7528\u3059\u308b\u306b\u306f\u6b21\u306e\u3088\u3046\u306b\u3057\u3066\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre><strong>import cv2\r\nimport numpy as np<\/strong><\/pre>\n<p>\uff08\u3059\u3067\u306bOpenCV\u306f\u30d0\u30fc\u30b8\u30e7\u30f3\uff13\u306a\u306e\u306b\u3001\u306a\u305c\u304b\u3044\u307e\u3060\u306b<code>cv2<\/code>\u3067\u3059\uff09<\/p>\n<p>\u3067\u306f\u3001\u6b21\u306e\u30d1\u30f3\u30c0\u306e\u753b\u50cf\u3092\u4f7f\u3063\u3066\u753b\u50cf\u3092\u5909\u5f62\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u753b\u50cf\u30b5\u30a4\u30ba\u306f\u3001250 x 250 \u30d4\u30af\u30bb\u30eb\uff09<\/strong><\/p>\n<p>\u753b\u50cf\u306f<code>imread()<\/code>\u3067\u8aad\u307f\u8fbc\u3093\u3067\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre>img = <strong>cv2.imread('.\/images\/panda.png')<\/strong><\/pre>\n<h1>\u753b\u50cf\u306e\u5909\u5f62<\/h1>\n<h2>\u30ea\u30b5\u30a4\u30ba\u3059\u308b<\/h2>\n<p>\u4f8b\u3048\u3070\u3001\u6a2a\u5e45\u3092<code>200px<\/code>\u3067\u9ad8\u3055\u3092<code>150px<\/code>\u306b\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u3067\u3059\u3002<\/p>\n<pre>width = 200\r\nheight = 150\r\nresized_img = <strong>cv2.resize(img, (width, height))<\/strong><\/pre>\n<p>\u203b <code>width<\/code>\u3068<code>height<\/code>\u306f\u30bf\u30d7\u30eb\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u753b\u50cf\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1994\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda.jpg\" alt=\"\" width=\"200\" height=\"150\" \/><\/p>\n<p>\u306a\u304a\u3001<code>interpolation<\/code>\u3092\u6307\u5b9a\u3059\u308c\u3070\u30ea\u30b5\u30a4\u30ba\u3059\u308b\u5834\u5408\u306e\u88dc\u9593\u65b9\u6cd5\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\uff08\u3064\u307e\u308a\u3001\u753b\u8cea\u304c\u5909\u308f\u308a\u307e\u3059\uff09<\/p>\n<pre>cv2.resize(img, (width, height), <strong>interpolation=cv2.INTER_LINEAR<\/strong>)<\/pre>\n<p>\u6307\u5b9a\u3067\u304d\u308b\u88dc\u9593\u65b9\u6cd5\u306f\u3001\u4ee5\u4e0b\u306e<\/p>\n<ul>\n<li>INTER_NEAREST\u3000\u30fb\u30fb\u30fb\u3000\u4e00\u756a\u753b\u8cea\u304c\u60aa\u3044<\/li>\n<li>INTER_LINEAR \u3000\u30fb\u30fb\u30fb\u3000\u30c7\u30d5\u30a9\u30eb\u30c8<\/li>\n<li>INTER_AREA\u3000\u30fb\u30fb\u30fb\u3000\u753b\u50cf\u306e\u5927\u5e45\u306a\u7e2e\u5c0f\u306b\u5411\u3044\u3066\u3044\u308b<\/li>\n<li>INTER_CUBIC\u3000\u30fb\u30fb\u30fb\u3000\u305d\u3053\u305d\u3053\u30ad\u30ec\u30a4\u3002<\/li>\n<li>INTER_LANCZOS4\u3000\u30fb\u30fb\u30fb\u3000\u4e00\u756a\u30ad\u30ec\u30a4\u3002<\/li>\n<\/ul>\n<p>\u3067\u306f\u3001\u4e00\u756a\u753b\u8cea\u304c\u60aa\u3044\u3082\u306e\u3068\u3044\u3044\u3082\u306e\u3067\u30ea\u30b5\u30a4\u30ba\u3057\u305f\u753b\u50cf\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\uff08INTER_NEAREST\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1996\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_nearest.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_nearest.jpg 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_nearest-150x150.jpg 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_nearest-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>\uff08INTER_LANCZOS4\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1995\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_lanczos4.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_lanczos4.jpg 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_lanczos4-150x150.jpg 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_lanczos4-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>\u307e\u305f\u3001\u3069\u308c\u3060\u3051<code>INTER_AREA<\/code>\u304c\u7e2e\u5c0f\u306b\u5411\u3044\u3066\u3044\u308b\u304b\u3082\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5de6\u304c\u901a\u5e38\u306e\u30ea\u30b5\u30a4\u30ba\u3067\u3001\u53f3\u304c<code>INTER_AREA<\/code>\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1997\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_linear.jpg\" alt=\"\" width=\"32\" height=\"32\" \/>\u3000<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1998\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/resized_panda_inter_area.jpg\" alt=\"\" width=\"32\" height=\"32\" \/><\/p>\n<h2>\u56de\u8ee2\u3059\u308b<\/h2>\n<p>OpenCV\u306b\u306f\u76f4\u63a5\u753b\u50cf\u3092\u56de\u8ee2\u3059\u308b\u95a2\u6570\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u56de\u8ee2\u884c\u5217\u3092\u3064\u304f\u308b\u95a2\u6570<code>getRotationMatrix2D()<\/code>\u306f\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u3053\u308c\u3068<code>warpAffine()<\/code>\u3092\u4f7f\u3063\u3066\u753b\u50cf\u3092\u56de\u8ee2\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><strong>height,width = img.shape[:2]\r\ncenter = (int(width\/2), int(height\/2))<\/strong> # \u4e2d\u5fc3\u70b9<strong>\r\nangle = 45<\/strong> # \u5de6\u56de\u8ee2<strong>\r\nM = cv2.getRotationMatrix2D(center, angle, 1)\r\nrotated_img = cv2.warpAffine(img, M, (width, height))\r\n<\/strong><\/pre>\n<p>\u307e\u305a\u3001<code>getRotationMatrix2D()<\/code>\u3067<\/p>\n<ul>\n<li>\u4e2d\u5fc3\u70b9<\/li>\n<li>\u56de\u8ee2\u3059\u308b\u89d2\u5ea6<\/li>\n<li>\u753b\u50cf\u306e\u62e1\u5927\uff0f\u7e2e\u5c0f\u7387<\/li>\n<\/ul>\n<p>\u3092\u5f15\u6570\u306b\u3057\u3066\u56de\u8ee2\u884c\u5217<code>M<\/code>\u3092\u3064\u304f\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u3053\u306e\u884c\u5217\u3092\u4f7f\u3063\u3066<code>warpAffine()<\/code>\u3059\u308c\u3070\u56de\u8ee2\u3057\u305f\u753b\u50cf\u3092\u3064\u304f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001\u5b9f\u969b\u306e\u753b\u50cf\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\uff08\u5143\u753b\u50cf\uff09<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u56de\u8ee2\u3057\u305f\u753b\u50cf<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1999\" style=\"border: 1px solid #ccc;\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated.jpg\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated.jpg 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated-150x150.jpg 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated-300x300.jpg 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated-100x100.jpg 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u306a\u304a\u3001\u62e1\u5927\u7387\u3092<code>0.7<\/code>\u306b\u3057\u305f\u5834\u5408\u3067\u3059\u3002<\/p>\n<pre>M = cv2.getRotationMatrix2D(center, angle, <strong>0.7<\/strong>)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2001\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated_2.jpg\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated_2.jpg 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated_2-150x150.jpg 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated_2-300x300.jpg 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated_2-100x100.jpg 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u305f\u3060\u3057\u3001\u753b\u50cf\u30b5\u30a4\u30ba\u306f\u5143\u306e\u307e\u307e\u306a\u306e\u3067\u304d\u3063\u3061\u308a\u30d5\u30a3\u30c3\u30c8\u3057\u305f\u30b5\u30a4\u30ba\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u3082\u3057\u56de\u8ee2\u5f8c\u306b\u3074\u3063\u305f\u308a\u30d5\u30a3\u30c3\u30c8\u3057\u305f\u753b\u50cf\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u6b21\u306e\u3088\u3046\u306a\u95a2\u6570\u3092\u4f7f\u3048\u3070\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<pre><strong>def fitting_rotated_image(img, angle, scale=1.0):\r\n    height,width = img.shape[:2]\r\n    center = (int(width\/2), int(height\/2))\r\n    rdians = np.deg2rad(angle)\r\n    M = cv2.getRotationMatrix2D(center, angle, scale)\r\n\r\n    # \u56de\u8ee2\u5f8c\u306e\u30b5\u30a4\u30ba\u3092\u8a08\u7b97\r\n    new_width = int(abs(np.sin(rdians)*height*scale) + abs(np.cos(rdians)*width*scale))\r\n    new_height = int(abs(np.sin(rdians)*width*scale) + abs(np.cos(rdians)*height*scale))\r\n\r\n    # \u56de\u8ee2\u5f8c\u306e\u4e2d\u5fc3\u3092\u4fee\u6b63\r\n    M[0,2] += int((new_width-width)\/2)\r\n    M[1,2] += int((new_height-height)\/2)\r\n\r\n    return cv2.warpAffine(img, M, (new_width, new_height))<\/strong>\r\n\r\nangle = 33\r\nscale = 0.5\r\nrotated_img = fitting_rotated_image(img, angle, scale)<\/pre>\n<p>\u3053\u308c\u3092\u5b9f\u884c\u3057\u305f\u3082\u306e\u304c\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2003\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/rotated_3.jpg\" alt=\"\" width=\"226\" height=\"226\" \/><\/p>\n<h2>\u5e73\u884c\u79fb\u52d5\u3055\u305b\u308b<\/h2>\n<p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306b\u753b\u50cf\u5168\u4f53\u3092\u659c\u3081\u53f3\u4e0b\u306b\u79fb\u52d5\u3055\u305b\u305f\u3044\u5834\u5408\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2006\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda_shift.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda_shift.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda_shift-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda_shift-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda_shift-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u3067\u306fX\u65b9\u5411\u306b<code>25px<\/code>\u3001Y\u65b9\u5411\u306b<code>50px<\/code>\u79fb\u52d5\u3055\u305b\u305f\u753b\u50cf\u3092\u3064\u304f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br \/>\n\u3053\u306e\u5834\u5408\u3001\u5e73\u884c\u79fb\u52d5\u884c\u5217\u3092\u4f5c\u3063\u3066<code>warpAffine()<\/code>\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<pre>moving_x = 25\r\nmoving_y = 50\r\n<strong>M = np.float32([[1, 0, moving_x], [0, 1, moving_y]])<\/strong>\r\nshifted_img = <strong>cv2.warpAffine(img, M, (width, height))<\/strong><\/pre>\n<p>\u5b9f\u969b\u306b\u4f5c\u6210\u3057\u305f\u753b\u50cf\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2007\" style=\"border: 1px solid #ccc;\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/shifted.jpg\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/shifted.jpg 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/shifted-150x150.jpg 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/shifted-300x300.jpg 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/shifted-100x100.jpg 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h2>\u5207\u308a\u629c\u304f\uff08crop\uff09<\/h2>\n<p>OpenCV\u3067\u753b\u50cf\u3092\u5207\u308a\u629c\u304f\u306b\u306f\u3001\u76f4\u63a5\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001\u6b21\u306e\u767d\u67a0\u306e\u3088\u3046\u306bX\u5ea7\u6a19<code>50<\/code>\u3001Y\u5ea7\u6a19\u304c<code>50<\/code>\u306e\u5730\u70b9\u304b\u3089\u5e45<code>250<\/code>\u3001\u9ad8\u3055<code>250<\/code>\u3067\u753b\u50cf\u3092\u5207\u308a\u51fa\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2017\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropping_panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropping_panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropping_panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropping_panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropping_panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<pre>x = 50\r\ny = 50\r\nwidth = 250\r\nheight = 250\r\ncropped_img = <strong>img[y:y+height, x:x+width]<\/strong><\/pre>\n<p>\u5b9f\u969b\u306b\u5207\u308a\u51fa\u3057\u305f\u753b\u50cf\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2018\" style=\"border: 1px solid #ccc;\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropped.jpg\" alt=\"\" width=\"250\" height=\"250\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropped.jpg 250w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropped-150x150.jpg 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/cropped-100x100.jpg 100w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/p>\n<h2>\u633f\u5165\u3059\u308b\uff08\u30ed\u30b4\uff09<\/h2>\n<p>\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u30ed\u30b4\u3092\u753b\u50cf\u306eX\u5ea7\u6a19<code>10<\/code>\u3001Y\u5ea7\u6a19<code>10<\/code>\u306e\u3068\u3053\u308d\u306b\u633f\u5165\u3057\u305f\u3044\u5834\u5408\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2020\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/watermark_1.png\" alt=\"\" width=\"80\" height=\"80\" \/><\/p>\n<pre>img = cv2.imread('.\/images\/panda.png')\r\noriginal_h, original_w = img.shape[:2]\r\nwatermark_img = cv2.imread('.\/images\/watermark_1.png')\r\nwatermark_h, watermark_w = watermark_img.shape[:2]\r\n<strong>img[10:watermark_h + 10, 10:watermark_h + 10] = watermark_img<\/strong><\/pre>\n<p>\u5b9f\u969b\u306b\u753b\u50cf\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2023\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_1.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_1.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_1-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_1-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_1-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u307e\u305f\u3001\u53f3\u4e0b\u306b\u30ed\u30b4\u3092\u633f\u5165\u3057\u305f\u3044\u5834\u5408\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><strong>img[original_h - watermark_h - 10:original_h - 10, original_w - watermark_w - 10:original_w - 10] = watermark_img<\/strong><\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2024\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u307e\u305f\u3001\u300c\u3071\u300d\u306e\u6587\u5b57\u304c\u900f\u904e\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3092\u307f\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5206\u304b\u308a\u306b\u304f\u3044\u3067\u3059\u304c\u3001\u300c\u3071\u300d\u306e\u90e8\u5206\u3060\u3051\u900f\u904e\u3067\u3059\u3002<br \/>\n\u2193\u2193\u2193<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2025\" style=\"background: #ddd;\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-1.png\" alt=\"\" width=\"80\" height=\"80\" \/><\/p>\n<p>\u6b21\u306e\u3088\u3046\u306b\u900f\u904e\u90e8\u5206\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u753b\u50cf\u306e\u7c92\u3092\u3072\u3068\u3064\u305a\u3064\u5909\u66f4\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<pre>img = cv2.imread('.\/images\/panda.png', <strong>cv2.IMREAD_UNCHANGED<\/strong>)\r\noriginal_h, original_w = img.shape[:2]\r\nlogo_img = cv2.imread('.\/images\/logo_2.png', <strong>cv2.IMREAD_UNCHANGED<\/strong>)\r\nlogo_h, logo_w = logo_img.shape[:2]\r\nx = 10\r\ny = 10\r\n\r\nfor i in range(0, logo_h):\r\n    for j in range(0, logo_w):\r\n        if logo_img[i,j][3] != 0:\r\n            img[y+i, x+j] = logo_img[i,j]<\/pre>\n<p>\u3053\u308c\u3092\u5b9f\u884c\u3059\u308b\u3068\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2026\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-2.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-2.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-2-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-2-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/logo_2-2-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u203b \u3082\u3057\u900f\u904e\u3068\u975e\u900f\u904e\u306e\u5883\u754c\u7dda\u3092\u307c\u304b\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b<code>if<\/code>\u306e\u6761\u4ef6\u3092\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre>if logo_img[i,j][3] &gt;= <strong>50<\/strong>:<\/pre>\n<h2>\u30e2\u30b6\u30a4\u30af\u51e6\u7406\u3092\u3059\u308b<\/h2>\n<p>\u753b\u50cf\u306b\u30e2\u30b6\u30a4\u30af\u51e6\u7406\u3092\u304b\u3051\u305f\u3044\u5834\u5408\u306e\u624b\u9806\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u5143\u753b\u50cf\u3092\u30b3\u30d4\u30fc\u3059\u308b<\/li>\n<li>\u30b3\u30d4\u30fc\u3057\u305f\u753b\u50cf\u3092\u7e2e\u5c0f\u3059\u308b<\/li>\n<li>\u7e2e\u5c0f\u3057\u305f\u753b\u50cf\u3092\u5143\u306e\u5927\u304d\u3055\u306b\u62e1\u5927\u3059\u308b<\/li>\n<\/ol>\n<p>\u3053\u3046\u3059\u308b\u3068\u7e2e\u5c0f\u3057\u305f\u3068\u304d\u306b\u753b\u50cf\u30c7\u30fc\u30bf\u306e\u4e00\u90e8\u304c\u5931\u308f\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u7d50\u679c\u30e2\u30b6\u30a4\u30af\u51e6\u7406\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u308f\u3051\u3067\u3059\u306d\u3002<\/p>\n<p>\u3067\u306f\u3001\u307e\u305a\u306f\u753b\u50cf\u5168\u4f53\u306b\u30e2\u30b6\u30a4\u30af\u3092\u304b\u3051\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre><strong>original_h, original_w = img.shape[:2]\r\ncopy_img = img.copy()\r\nmosaic_length = 50\r\nsmall_img = cv2.resize(copy_img, (mosaic_length, mosaic_length), interpolation=cv2.INTER_NEAREST)\r\nmosaic_img = cv2.resize(small_img, (original_h, original_w), interpolation=cv2.INTER_NEAREST)<\/strong><\/pre>\n<p>\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u304c\u3001<code>interpolation<\/code>\u306b<code>cv2.INTER_NEAREST<\/code>\u3092\u4f7f\u3063\u3066\u3044\u308b\u90e8\u5206\u3067\u3059\u3002\u3053\u306e\u30e2\u30fc\u30c9\u306f\u6700\u3082\u88dc\u9593\u304c\u96d1\u306a\u30e2\u30fc\u30c9\u3067\u3059\u304c\u3001\u4ed6\u306e\u30e2\u30fc\u30c9\u3060\u3068\u306a\u3081\u3089\u304b\u306b\u3057\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u7d50\u679c\u30e2\u30b6\u30a4\u30af\u51e6\u7406\u3063\u307d\u304f\u306a\u3089\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u4fdd\u5b58\u3057\u305f\u753b\u50cf\u304c\u3053\u3061\u3089\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2027\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_1.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_1.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_1-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_1-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_1-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u3061\u306a\u307f\u306b<code>mosaic_length<\/code>\u3092\u5909\u66f4\u3059\u308b\u3068\u30e2\u30b6\u30a4\u30af\u306e\u5ea6\u5408\u3044\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f<code>10<\/code>\u3067\u5b9f\u884c\u3057\u305f\u753b\u50cf\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2028\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_2.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_2.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_2-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_2-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_2-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\u3067\u306f\u3001\u6b21\u306b\u4e00\u90e8\u5206\u3060\u3051\u3092\u30e2\u30b6\u30a4\u30af\u51e6\u7406\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br \/>\nX\u5ea7\u6a19<code>150<\/code>\u3001Y\u5ea7\u6a19<code>10<\/code>\u3001\u9577\u3055<code>150<\/code>\u306e\u6b63\u65b9\u5f62\u306e\u30e2\u30b6\u30a4\u30af\u3067\u3059\u3002<\/p>\n<pre><strong>x = 150\r\ny = 10\r\nlength = 150\r\nblock_img = img[y:y+length, x:x+length]\r\nsmall_img = cv2.resize(block_img, (10, 10), interpolation=cv2.INTER_NEAREST)\r\nmosaic_img = cv2.resize(small_img, (length, length), interpolation=cv2.INTER_NEAREST)\r\nimg[y:y+length, x:x+length] = mosaic_img<\/strong><\/pre>\n<p>\u3084\u3063\u3066\u3044\u308b\u3053\u3068\u306f\u3001\u4e00\u90e8\u3092\u5207\u308a\u51fa\u3057\u3066\u7e2e\u5c0f\uff06\u62e1\u5927\u3067\u30e2\u30b6\u30a4\u30af\u3092\u4f5c\u308a\u3001\u305d\u306e\u30e2\u30b6\u30a4\u30af\u3092\u753b\u50cf\u306e\u5143\u306e\u4f4d\u7f6e\u306b\u623b\u3059\u3060\u3051\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u753b\u50cf\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2029\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_3.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_3.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_3-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_3-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/mosaic_3-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h2>\u307c\u304b\u3059<\/h2>\n<p>OpenCV\u306b\u306f\u753b\u50cf\u3092\u307c\u304b\u3059\u65b9\u6cd5\u304c\u3044\u304f\u3064\u304b\u3042\u308b\u306e\u3067\u3072\u3068\u3064\u305a\u3064\u307f\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u5e73\u5747<\/h3>\n<p>\u6307\u5b9a\u3057\u305f\u7bc4\u56f2\u306e\u5e73\u5747\u3092\u5229\u7528\u3059\u308b\u307c\u304b\u3057\u3067\u3059\u3002<\/p>\n<pre>blurred_img = cv2.blur(img, <strong>(7, 7)<\/strong>)<\/pre>\n<p>\u203b \u6570\u5b57\u304c\u5927\u304d\u304f\u306a\u308b\u306b\u9023\u308c\u3066\u307c\u304b\u3057\u304c\u304d\u3064\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u884c\u7d50\u679c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u307c\u304b\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2032\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_1.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_1.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_1-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_1-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_1-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\u30ac\u30a6\u30b7\u30a2\u30f3\u307c\u304b\u3057<\/h3>\n<pre>blurred_img = <strong>cv2.GaussianBlur(img, (5, 5), 0, 0)<\/strong><\/pre>\n<p><code>(5, 5)<\/code>\u306e\u90e8\u5206\u304c\u307c\u304b\u3057\u30b5\u30a4\u30ba\u3001\u6b8b\u308a\u306e<code>0<\/code>\u306fX\u3068Y\u306e\u6a19\u6e96\u504f\u5dee\u3067\u3059\u3002\u3069\u3061\u3089\u3082\u6570\u5b57\u304c\u5927\u304d\u304f\u306a\u308b\u3068\u307c\u304b\u3057\u304c\u304d\u3064\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u30ac\u30a6\u30b7\u30a2\u30f3\u307c\u304b\u3057\u3092\u5b9f\u884c\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2033\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_2.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_2.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_2-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_2-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_2-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\u4e2d\u592e\u5024\uff08\u30e1\u30c7\u30a3\u30a2\u30f3\uff09\u307c\u304b\u3057<\/h3>\n<p>\u4e2d\u592e\u5024\u3092\u5229\u7528\u3057\u305f\u30dc\u30ab\u30b7\u3067\u3001\u6cb9\u7d75\u306e\u3088\u3046\u306a\u30da\u30bf\u30c3\u3068\u3057\u305f\u307c\u304b\u3057\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre>blurred_img = <strong>cv2.medianBlur(img, 7)<\/strong><\/pre>\n<p>\u6570\u5024\u304c\u5927\u304d\u304f\u306a\u308b\u307b\u3069\u307c\u304b\u3057\u304c\u304d\u3064\u304f\u306a\u308a\u307e\u3059\u3002<br \/>\n\u307e\u305f\u3001\u6570\u5024\u306f\u5947\u6570\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u4e2d\u592e\u5024\u307c\u304b\u3057\u3092\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2034\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_3.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_3.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_3-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_3-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_3-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\u30d0\u30a4\u30e9\u30c6\u30e9\u30eb<\/h3>\n<p>\u3088\u308a\u8f2a\u90ed\u3092\u4fdd\u6301\u3057\u305f\u307e\u307e\u306e\u307c\u304b\u3057\u3067\u3059\u3002<\/p>\n<pre>blurred_img = <strong>cv2.bilateralFilter(img, 50, 50, 50)<\/strong><\/pre>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u30d0\u30a4\u30e9\u30c6\u30e9\u30eb\u3067\u307c\u304b\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2035\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_4.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_4.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_4-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_4-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/blurred_4-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p>\uff08\u3042\u307e\u308a\u5909\u5316\u304c\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u6587\u5b57\u306e\u8f2a\u90ed\u304c\u969b\u7acb\u3063\u3066\u3044\u307e\u3059\uff09<\/p>\n<h2>\u753b\u50cf\u3092\u304f\u3063\u304d\u308a\u3055\u305b\u308b\uff08\u30b7\u30e3\u30fc\u30d7\uff09<\/h2>\n<p>\u30ab\u30fc\u30cd\u30eb\uff08\u914d\u5217\uff09\u3092\u4f7f\u3063\u3066\u30b7\u30e3\u30fc\u30d7\u306b\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<pre><strong>sharpened_img = cv2.filter2D(img, -1, kernel)<\/strong><\/pre>\n<p><code>kernel<\/code>\uff08\u30b7\u30e3\u30fc\u30d7\u306e\u5ea6\u5408\u3044\u304c\u6c7a\u307e\u308b\u914d\u5217\uff09\u3092\u3044\u304f\u3064\u304b\u7528\u610f\u3057\u307e\u3057\u305f\u3002<br \/>\n\u4e0b\u306b\u884c\u304f\u307b\u3069\u30b7\u30e3\u30fc\u30d7\u304c\u304d\u3064\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\uff08\u30b7\u30e3\u30fc\u30d7\uff11\uff09<\/h3>\n<pre>kernel_1 = np.array(<strong>[\r\n    [0, -1, 0],\r\n    [0, 3, 0],\r\n    [0, -1, 0]\r\n]<\/strong>)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2037\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_1.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_1.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_1-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_1-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_1-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\uff08\u30b7\u30e3\u30fc\u30d7\uff12\uff09<\/h3>\n<pre>kernel_2 = np.array(<strong>[\r\n    [0, -1, 0],\r\n    [-1, 5, -1],\r\n    [0, -1, 0]\r\n]<\/strong>)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2038\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_2.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_2.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_2-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_2-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_2-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\uff08\u30b7\u30e3\u30fc\u30d7\uff13\uff09<\/h3>\n<pre>kernel_3 = np.array(<strong>[\r\n    [-1, -1, -1],\r\n    [-1, 9, -1],\r\n    [-1, -1, -1]\r\n]<\/strong>)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2039\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_3.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_3.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_3-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_3-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_3-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\uff08\u30b7\u30e3\u30fc\u30d7\uff14\uff09<\/h3>\n<pre>kernel_4 = np.array(<strong>[\r\n    [-1, -2, -1],\r\n    [-2, 12, -2],\r\n    [-1, -2, -1]\r\n]<\/strong>)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2040\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_4.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_4.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_4-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_4-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_4-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\uff08\u30b7\u30e3\u30fc\u30d7\uff15\uff09<\/h3>\n<pre>kernel_5 = np.array(<strong>[\r\n    [1, 4, 6, 4, 1],\r\n    [4, 16, 24, 16, 4],\r\n    [6, 24, -476, 24, 6],\r\n    [4, 16, 24, 16, 4],\r\n    [1, 4, 6, 4, 1]\r\n]<\/strong>)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2041\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_5.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_5.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_5-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_5-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/sharpness_5-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h3>\u30a2\u30f3\u30b7\u30e3\u30fc\u30d7\u30de\u30b9\u30af<\/h3>\n<p>\u307e\u305f\u3001<code>addWeighted()<\/code>\u3092\u4f7f\u3063\u305f\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<br \/>\n\u624b\u9806\u306f\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u5143\u753b\u50cf\u304b\u3089\u65b0\u3057\u3044\u307c\u304b\u3057\u753b\u50cf\u3092\u3064\u304f\u308a\u307e\u3059<\/li>\n<li>\u5143\u753b\u50cf\u304b\u3089\u307c\u304b\u3057\u90e8\u5206\u3092\u6e1b\u3089\u3057\u307e\u3059<\/li>\n<li>\u5b8c\u6210<\/li>\n<\/ol>\n<pre><strong>blurred_img = cv2.GaussianBlur(img, (9,9), 10.0)\r\nunsharp_image = cv2.addWeighted(img, 2.0, blurred_img, -1.0, 0, img)\r\ncv2.imwrite('unsharp_image.png', unsharp_image)<\/strong><\/pre>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u30a2\u30f3\u30b7\u30e3\u30fc\u30d7\u30de\u30b9\u30af\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2042\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/unsharp_image.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/unsharp_image.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/unsharp_image-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/unsharp_image-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/unsharp_image-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h2>\u660e\u308b\u3055\u3092\u5909\u66f4\u3059\u308b<\/h2>\n<p>HSV\u753b\u50cf\u306b\u5909\u63db\u3057\u3066\u660e\u308b\u3055\u8abf\u6574\u3057\u307e\u3059\u3002<\/p>\n<pre><strong>brightness = 50\r\n\r\nhsv_img = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)\r\nh,s,v = cv2.split(hsv_img)\r\nif brightness &gt; 0:\r\n    v[v &gt; 255-brightness] = 255\r\n    v[v &lt;= 255-brightness] += brightness\r\nelif brightness &lt; 0:\r\n    abs_brightness = np.abs(brightness)\r\n    v[v &lt; 0+abs_brightness] = 0 v[v &gt;= 0+abs_brightness] -= abs_brightness\r\n\r\nhsv_img = cv2.merge((h, s, v))\r\nbrightness_img = cv2.cvtColor(hsv_img, cv2.COLOR_HSV2BGR)<\/strong><\/pre>\n<p>\u203b <code>brightness<\/code>\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u3068\u660e\u308b\u3055\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u30de\u30a4\u30ca\u30b9\u306e\u6570\u5024\u3082OK\u3067\u3059\u3002<\/p>\n<p>\u3084\u3063\u3066\u3044\u308b\u3053\u3068\u306f\u3001\u753b\u50cf\u3092HSV\u306b\u5909\u63db\u3057\u3066<\/p>\n<ul>\n<li>\u660e\u308b\u304f\u3059\u308b\u3000\u30fb\u30fb\u30fb\u3000\u300cV\u300d\u306e\u90e8\u5206\u306b brightness \u3092\u8db3\u3059\uff08\u6700\u5927\u5024\u306f<code>255<\/code>\uff09<\/li>\n<li>\u6697\u304f\u3059\u308b\u3000\u30fb\u30fb\u30fb\u3000\u300cV\u300d\u306e\u90e8\u5206\u304b\u3089 brightness \u3092\u5f15\u304f\uff08\u6700\u5c0f\u5024\u306f<code>0<\/code>\uff09<\/li>\n<\/ul>\n<p>\u3092\u8a08\u7b97\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001brightness\u304c\u30bc\u30ed\u306e\u5834\u5408\u306f\u4f55\u3082\u3057\u307e\u305b\u3093\u3002<\/p>\n<p><strong>\uff08brightness<code>50<\/code>\u306e\u5834\u5408\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2043\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_1.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_1.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_1-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_1-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_1-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08brightness<code>-50<\/code>\u306e\u5834\u5408\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2044\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_2.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_2.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_2-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_2-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/brightness_2-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h2>\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u5909\u66f4\u3059\u308b<\/h2>\n<p>\u753b\u50cf\u3092LAB\u5f62\u5f0f\u3078\u5909\u63db\u3057\u3066\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u3064\u3051\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre><strong>lab_img = cv2.cvtColor(img, cv2.COLOR_BGR2LAB)\r\nl,a,b = cv2.split(lab_img)\r\nclahe = cv2.createCLAHE(clipLimit=3.0, tileGridSize=(15,15))\r\nnew_l = clahe.apply(l)\r\nlab_img = cv2.merge((new_l, a, b))\r\ncontrast_img = cv2.cvtColor(lab_img, cv2.COLOR_LAB2BGR)<\/strong><\/pre>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u304b\u3051\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2045\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/contrast.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/contrast.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/contrast-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/contrast-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/contrast-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h2>\u8272\u3092\u53cd\u8ee2\u3059\u308b<\/h2>\n<pre><strong>invert_img = 255 - img<\/strong><\/pre>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u8272\u53cd\u8ee2\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2046\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/invert.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/invert.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/invert-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/invert-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/invert-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h2>\u534a\u900f\u660e\u306b\u3059\u308b<\/h2>\n<pre><strong>alpha_img = cv2.cvtColor(img, cv2.COLOR_RGB2RGBA)\r\nalpha_img[:, :, 3] = 150\r\ncv2.imwrite('alpha.png', alpha_img)<\/strong><\/pre>\n<p>\u3084\u3063\u3066\u3044\u308b\u3053\u3068\u306f\u3001\u753b\u50cf\u3092\u900f\u904e\u3042\u308a\u306e\u753b\u50cf\u3078\u5909\u63db\u3057\u3001\u900f\u904e\u90e8\u5206\u3092\u6570\u5024\uff08<code>150<\/code>\uff09\u3067\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u3060\u3051\u3067\u3059\u3002\u3061\u306a\u307f\u306b\u3001<code>0<\/code>\u304c\u6700\u5927\u900f\u904e\u3067<code>255<\/code>\u3060\u3068\u900f\u904e\u306a\u3057\u3067\u3059\u3002<\/p>\n<p><strong>\uff08\u5143\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1993\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/panda-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<p><strong>\uff08\u900f\u904e\u3057\u305f\u753b\u50cf\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2047\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/alpha.png\" alt=\"\" width=\"320\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/alpha.png 320w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/alpha-150x150.png 150w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/alpha-300x300.png 300w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/11\/alpha-100x100.png 100w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/p>\n<h1>\u304a\u308f\u308a\u306b<\/h1>\n<p>PHP\u306a\u3069\u3067\u753b\u50cf\u306e\u7de8\u96c6\u3092\u3057\u3066\u3044\u308b\u3068\u5206\u304b\u308a\u306b\u304f\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001OpenCV\u3092\u4f7f\u3046\u3068\u7d50\u5c40\u306f\u753b\u50cf\u3082\u6570\u5024\u306e\u96c6\u307e\u308a\uff08\u914d\u5217\uff09\u3068\u3044\u3046\u3053\u3068\u304c\u3088\u304f\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n<p>\u305f\u3060\u3001\u3084\u3063\u3071\u308aOpenCV\u306f\u6280\u8853\u7684\u306a\u7528\u9014\u306b\u4f7f\u308f\u308c\u308b\u304b\u3089\u304b\u3001\u304d\u3061\u3093\u3068\u6570\u5b66\u3092\u52c9\u5f37\u3057\u3066\u3044\u306a\u3044\u3068\u4f7f\u3044\u306b\u304f\u3044\u90e8\u5206\u304c\u3042\u308b\u306e\u306f\u78ba\u304b\u3067\u3059\u3002\u305d\u3046\u3044\u3063\u305f\u5834\u5408\u306f\u3001\u3082\u3057\u304b\u3059\u308b\u3068Python\u306e\u4e2d\u304b\u3089ImageMagick\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u307b\u3046\u304c\u624b\u3063\u53d6\u308a\u65e9\u3044\u3053\u3068\u3082\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\uff08\u958b\u767a\u5185\u5bb9\u306b\u3088\u3063\u3066\u9078\u629e\u3059\u308b\u3068\u3044\u3044\u3093\u3058\u3083\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff09<\/p>\n<p>\u3067\u306f\u3067\u306f\u301c\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1785 aligncenter\" src=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/10\/15-2.png\" alt=\"\" width=\"226\" height=\"320\" srcset=\"https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/10\/15-2.png 226w, https:\/\/blog.capilano-fw.com\/wp-content\/uploads\/2018\/10\/15-2-212x300.png 212w\" sizes=\"auto, (max-width: 226px) 100vw, 226px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3055\u3066\u3055\u3066\u3001\u524d\u56de\u306f\u4e45\u3057\u3076\u308a\u306b2D\u306e\u9854\u753b\u50cf\u30923D\u5316\u3059\u308b\u3068\u3044\u3046Python\u30b3\u30fc\u30c9\u306e\u304a\u8a71\u3092\u304a\u5c4a\u3051\u3057\u307e\u3057\u305f\u3002 \u500b\u4eba\u7684\u306bPython\u958b\u767a\u3082\u30e1\u30a4\u30f3\u3067\u8acb\u3051\u8ca0\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u6700 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/blog.capilano-fw.com\/?p=1990\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;opencv \u306e\u57fa\u672c\u7684\u306a\u753b\u50cf\u5909\u5f62\uff1a \u516812\u5b9f\u4f8b\uff01&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":2013,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120,39],"tags":[83],"class_list":["post-1990","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-opencv","category-python","tag-83"],"_links":{"self":[{"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/posts\/1990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1990"}],"version-history":[{"count":18,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/posts\/1990\/revisions"}],"predecessor-version":[{"id":2053,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/posts\/1990\/revisions\/2053"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=\/wp\/v2\/media\/2013"}],"wp:attachment":[{"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.capilano-fw.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}