{"id":1789,"date":"2018-09-17T00:33:13","date_gmt":"2018-09-16T15:33:13","guid":{"rendered":"https:\/\/www.dogrow.net\/python\/?p=1789"},"modified":"2018-09-17T00:37:28","modified_gmt":"2018-09-16T15:37:28","slug":"blog98","status":"publish","type":"post","link":"https:\/\/www.dogrow.net\/python\/blog98\/","title":{"rendered":"(98) OpenCV #3 : Canny\u6cd5\u3067\u30a8\u30c3\u30b8\u62bd\u51fa"},"content":{"rendered":"<h1 class=\"my_h\">1. \u3084\u308a\u305f\u3044\u3053\u3068<\/h1>\n<p>Python\u3067 OpenCV\u306e\u7b2c 3\u56de\u76ee\u3001\u4eca\u56de\u306f OpenCV\u306e Canny\u95a2\u6570\u3092\u4f7f\u3063\u3066\u753b\u50cf\u306e\u30a8\u30c3\u30b8\u62bd\u51fa\u3092\u3084\u308a\u305f\u3044\u3002<\/p>\n<h1 class=\"my_h\">2. \u3084\u3063\u3066\u307f\u308b<\/h1>\n<p>\u307e\u305a\u306f\u5143\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u307f\u3001\u767d\u9ed2\u753b\u50cf\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport cv2\r\nfrom PIL import Image\r\n\r\n# \u5bfe\u8c61\u753b\u50cf\u3092\u30ed\u30fc\u30c9\r\nimg = cv2.imread(&quot;img001.jpg&quot;)\r\n\r\n# \u30ab\u30e9\u30fc\u753b\u50cf\u3092\u767d\u9ed2\u753b\u50cf\u306b\u5909\u63db\r\nimgG = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)\r\n\r\n# \u753b\u50cf\u3092\u8868\u793a\r\npilG = Image.fromarray(imgG)\r\npilG.show()\r\n<\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.dogrow.net\/python\/wp-content\/uploads\/2018\/09\/001.png\" alt=\"\" \/><\/p>\n<p>\u6b21\u306b Canny\u6cd5\uff08\u30d2\u30b9\u30c6\u30ea\u30b7\u30b9 min:100, max:200\uff09\u3067\u30a8\u30c3\u30b8\u3092\u62bd\u51fa\u3057\u3066\u307f\u308b\u3002<br \/>\n\u3059\u306a\u308f\u3061\u3001Canny\u6cd5\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3068\u3057\u3066\u3001<br \/>\n\u30fbUP\u65b9\u5411\u306e\u5834\u5408\u306e\u95be\u5024\u306f 200<br \/>\n\u30fbDOWN\u65b9\u5411\u306e\u5834\u5408\u306e\u95be\u5024\u306f 100<br \/>\n\u30fb100\uff5e200\u306f ON\/OFF\u6df7\u5728\u306e\u30e2\u30e4\u30e2\u30e4\u533a\u9593<br \/>\n\u3068\u3059\u308b\u306e\u3060\u3002<br \/>\n\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u8a73\u7d30\u306f <a href=\"http:\/\/labs.eecs.tottori-u.ac.jp\/sd\/Member\/oyamada\/OpenCV\/html\/py_tutorials\/py_imgproc\/py_canny\/py_canny.html\" target=\"_blank\">Canny\u6cd5\u306b\u3088\u308b\u30a8\u30c3\u30b8\u691c\u51fa<\/a> \u3092\u53c2\u7167\u306e\u3053\u3068\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\n# Canny\u6cd5\u3067\u30a8\u30c3\u30b8\u62bd\u51fa\r\nedges = cv2.Canny(imgG,100,200)\r\n\r\n# \u753b\u50cf\u3092\u8868\u793a\r\npilE = Image.fromarray(edges)\r\npilE.show()\r\n<\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.dogrow.net\/python\/wp-content\/uploads\/2018\/09\/0098_100_200.png\" alt=\"\" \/><\/p>\n<p>\u6b21\u306b Canny\u6cd5\uff08\u30d2\u30b9\u30c6\u30ea\u30b7\u30b9 min:50, max:100\uff09\u3067\u30a8\u30c3\u30b8\u3092\u62bd\u51fa\u3057\u3066\u307f\u308b\u3002<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dogrow.net\/python\/wp-content\/uploads\/2018\/09\/0098_050_100.png\" alt=\"\" \/><\/p>\n<p>\u6b21\u306b Canny\u6cd5\uff08\u30d2\u30b9\u30c6\u30ea\u30b7\u30b9 min:150, max:200\uff09\u3067\u30a8\u30c3\u30b8\u3092\u62bd\u51fa\u3057\u3066\u307f\u308b\u3002<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dogrow.net\/python\/wp-content\/uploads\/2018\/09\/0098_150_200.png\" alt=\"\" \/><\/p>\n<p>\u6700\u5f8c\u306b Canny\u6cd5\uff08\u30d2\u30b9\u30c6\u30ea\u30b7\u30b9 min:125, max:175\uff09\u3067\u30a8\u30c3\u30b8\u3092\u62bd\u51fa\u3057\u3066\u307f\u308b\u3002<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.dogrow.net\/python\/wp-content\/uploads\/2018\/09\/0098_125_175.png\" alt=\"\" \/><\/p>\n<h1 class=\"my_h\">3. \u6240\u611f<\/h1>\n<p>\u6700\u9069\u306a\u95be\u5024\u306f\u5bfe\u8c61\u753b\u50cf\u306b\u3088\u308a\u7570\u306a\u308b\u306f\u305a\u3002<br \/>\n\u3069\u3046\u3084\u3063\u3066\u898b\u3064\u3051\u308b\u306e\u304b\u306a\uff1f<\/p>\n<h1 class=\"my_h\">4. \u53c2\u8003<\/h1>\n<p>\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002 m(_ _)m<br \/>\n<a href=\"http:\/\/labs.eecs.tottori-u.ac.jp\/sd\/Member\/oyamada\/OpenCV\/html\/py_tutorials\/py_imgproc\/py_canny\/py_canny.html\" target=\"_blank\">http:\/\/labs.eecs.tottori-u.ac.jp\/sd\/Member\/oyamada\/OpenCV\/html\/py_tutorials\/py_imgproc\/py_canny\/py_canny.html<\/a><\/p>\n<hr class=\"my_hr_bottom\">\n","protected":false},"excerpt":{"rendered":"<p>1. \u3084\u308a\u305f\u3044\u3053\u3068 Python\u3067 OpenCV\u306e\u7b2c 3\u56de\u76ee\u3001\u4eca\u56de\u306f OpenCV\u306e Canny\u95a2\u6570\u3092\u4f7f\u3063\u3066\u753b\u50cf\u306e\u30a8\u30c3\u30b8\u62bd\u51fa\u3092\u3084\u308a\u305f\u3044\u3002 2. \u3084\u3063\u3066\u307f\u308b \u307e\u305a\u306f\u5143\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u307f\u3001\u767d\u9ed2\u753b\u50cf\u306b\u5909\u63db\u3059\u308b\u3002 import cv\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.dogrow.net\/python\/blog98\/\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-1789","post","type-post","status-publish","format-standard","hentry","category-opencv"],"views":5846,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts\/1789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/comments?post=1789"}],"version-history":[{"count":5,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts\/1789\/revisions"}],"predecessor-version":[{"id":1798,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/posts\/1789\/revisions\/1798"}],"wp:attachment":[{"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/media?parent=1789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/categories?post=1789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dogrow.net\/python\/wp-json\/wp\/v2\/tags?post=1789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}