{"id":9149,"date":"2016-11-27T23:19:13","date_gmt":"2016-11-28T04:19:13","guid":{"rendered":"httpss:\/\/www.powenko.com\/wordpress\/?p=9149"},"modified":"2016-11-27T23:25:23","modified_gmt":"2016-11-28T04:25:23","slug":"%e8%86%a8%e8%84%b9-dilate","status":"publish","type":"post","link":"https:\/\/www.powenko.com\/wordpress\/?p=9149","title":{"rendered":"\u81a8\u8139 dilate"},"content":{"rendered":"<pre><pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n#include &amp;lt;iostream&amp;gt;\r\n#include &amp;lt;opencv2\/core\/core.hpp&amp;gt; \r\n#include &amp;lt;opencv2\/highgui\/highgui.hpp&amp;gt;\r\n#include &amp;lt;opencv2\/opencv.hpp&amp;gt;\r\n\r\nusing namespace cv ;\r\nusing namespace std ;\r\nMat src; Mat src_gray;\r\nint thresh = 100;\r\nint max_thresh = 255;\r\nRNG rng(12345);\r\nvoid thresh_callback(int, void* );\r\nint main( int, char** argv )\r\n{\r\n    src = cv::imread(&quot;\/Users\/powenko\/Desktop\/apple.png&quot;);\r\n    if (src.empty())\r\n    {\r\n        cerr &amp;lt;&amp;lt; &quot;No image supplied ...&quot; &amp;lt;&amp;lt; endl;\r\n        return -1;\r\n    }\r\n    const char* source_window = &quot;Source&quot;;\r\n    namedWindow( source_window, WINDOW_AUTOSIZE );\r\n    imshow( source_window, src );\r\n    createTrackbar( &quot; erode thresh:&quot;, &quot;Source&quot;, &amp;amp;thresh, max_thresh, thresh_callback );\r\n    thresh_callback( 0, 0 );\r\n    waitKey(0);\r\n    return(0);\r\n}\r\nvoid thresh_callback(int, void* )\r\n{\r\n    Mat canny_output;\r\n    vector&amp;lt;vector&amp;lt;Point&amp;gt; &amp;gt; contours;\r\n    vector&amp;lt;Vec4i&amp;gt; hierarchy;\r\n    \/\/kernel\u7684\u5f62\u72c0----\u77e9\u5f62: MORPH_RECT  \u4ea4\u53c9\u5f62: MORPH_CROSS   \u692d\u5706\u5f62 : MORPH_ELLIPSE\r\n    Mat drawing;\r\n    if(thresh&amp;gt;0){\r\n        Mat element = getStructuringElement(MORPH_RECT,\t Size(thresh,thresh));\r\n        dilate(src, drawing, element);\r\n    }else{\r\n        drawing=src;\r\n        \r\n    }\r\n    namedWindow( &quot;Contours&quot;, WINDOW_AUTOSIZE );\r\n    imshow( &quot;Contours&quot;, drawing );\r\n}\r\n\r\n<\/pre>\n<p><a href=\"httpss:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9151\" src=\"httpss:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM.png\" alt=\"screen-shot-2016-11-28-at-12-11-45-pm\" width=\"1085\" height=\"521\" srcset=\"https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM.png 1085w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-300x144.png 300w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-570x274.png 570w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-316x152.png 316w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-120x58.png 120w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-210x101.png 210w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-496x238.png 496w, https:\/\/www.powenko.com\/wordpress\/wp-content\/uploads\/2016\/11\/Screen-Shot-2016-11-28-at-12.11.45-PM-140x67.png 140w\" sizes=\"(max-width: 1085px) 100vw, 1085px\" \/><\/a><\/p>\n<p><iframe loading=\"lazy\" src=\"httpsss:\/\/www.youtube.com\/embed\/8crjGr7KEI4\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>#include &amp;lt;iostream&amp;gt; #include &amp;lt;open [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9151,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[335],"tags":[],"class_list":["post-9149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ch5-findcontoursdrawcontours"],"_links":{"self":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/9149"}],"collection":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9149"}],"version-history":[{"count":3,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/9149\/revisions"}],"predecessor-version":[{"id":9155,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/9149\/revisions\/9155"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/9151"}],"wp:attachment":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}