{"id":3311,"date":"2021-07-23T09:20:16","date_gmt":"2021-07-23T09:20:16","guid":{"rendered":"https:\/\/www.bearloga.space\/?page_id=3311"},"modified":"2021-07-23T09:20:16","modified_gmt":"2021-07-23T09:20:16","slug":"opencv-filter2d","status":"publish","type":"page","link":"https:\/\/www.bearloga.space\/uk\/opencv-filter2d\/","title":{"rendered":"OpenCV \u2014 Filter2D"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u044f Filter2D \u0441\u0432\u043e\u0440\u0430\u0447\u0438\u0432\u0430\u0435\u0442 \u043e\u0431\u0440\u0430\u0437 \u0441 \u044f\u0434\u0440\u043e\u043c.&nbsp;\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u044d\u0442\u0443 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044e \u043d\u0430\u0434 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435\u043c, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043c\u0435\u0442\u043e\u0434&nbsp;<strong>Filter2D ()<\/strong>&nbsp;\u043a\u043b\u0430\u0441\u0441\u0430&nbsp;<strong>imgproc<\/strong>&nbsp;.&nbsp;\u041d\u0438\u0436\u0435 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u044d\u0442\u043e\u0433\u043e \u043c\u0435\u0442\u043e\u0434\u0430 \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">filter2D(src, dst, ddepth, kernel)\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e\u0442 \u043c\u0435\u0442\u043e\u0434 \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b \u2014<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>src<\/strong>&nbsp;\u2014 \u041e\u0431\u044a\u0435\u043a\u0442&nbsp;<strong>Mat,<\/strong>&nbsp;\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a (\u0432\u0445\u043e\u0434\u043d\u043e\u0435 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435) \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438.<\/li><li><strong>dst<\/strong>&nbsp;\u2014 \u043e\u0431\u044a\u0435\u043a\u0442&nbsp;<strong>Mat,<\/strong>&nbsp;\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u043c\u0435\u0441\u0442\u043e \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f (\u0432\u044b\u0445\u043e\u0434\u043d\u043e\u0435 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435) \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438.<\/li><li><strong>ddepth<\/strong>&nbsp;\u2014 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0442\u0438\u043f\u0430 integer, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0430\u044f \u0433\u043b\u0443\u0431\u0438\u043d\u0443 \u0432\u044b\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f.<\/li><li><strong>kernel<\/strong>&nbsp;\u2014 \u043e\u0431\u044a\u0435\u043a\u0442&nbsp;<strong>Mat,<\/strong>&nbsp;\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u044f\u0434\u0440\u043e \u200b\u200b\u0441\u0432\u0435\u0440\u0442\u043a\u0438.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>src<\/strong>&nbsp;\u2014 \u041e\u0431\u044a\u0435\u043a\u0442&nbsp;<strong>Mat,<\/strong>&nbsp;\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a (\u0432\u0445\u043e\u0434\u043d\u043e\u0435 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435) \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>dst<\/strong>&nbsp;\u2014 \u043e\u0431\u044a\u0435\u043a\u0442&nbsp;<strong>Mat,<\/strong>&nbsp;\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u043c\u0435\u0441\u0442\u043e \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f (\u0432\u044b\u0445\u043e\u0434\u043d\u043e\u0435 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435) \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ddepth<\/strong>\u00a0\u2014 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0442\u0438\u043f\u0430 integer, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0430\u044f \u0433\u043b\u0443\u0431\u0438\u043d\u0443 \u0432\u044b\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>kernel<\/strong>&nbsp;\u2014 \u043e\u0431\u044a\u0435\u043a\u0442&nbsp;<strong>Mat,<\/strong>&nbsp;\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u044f\u0434\u0440\u043e \u200b\u200b\u0441\u0432\u0435\u0440\u0442\u043a\u0438.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u043f\u0440\u0438\u043c\u0435\u0440<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043b\u0435\u0434\u0443\u044e\u0449\u0430\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0430 \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u0443\u0435\u0442, \u043a\u0430\u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044e Filter2D \u043d\u0430\u0434 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435\u043c.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import org.opencv.core.Core;\nimport org.opencv.core.CvType;\nimport org.opencv.core.Mat;\nimport org.opencv.imgcodecs.Imgcodecs;\nimport org.opencv.imgproc.Imgproc;\n\npublic class Filter2D {\n   public static void main( String[] args ) {\n      \/\/Loading the OpenCV core library  \n      System.loadLibrary( Core.NATIVE_LIBRARY_NAME );\n\n      \/\/Reading the Image from the file and storing it in to a Matrix object\n      String file =\"E:\/OpenCV\/chap11\/filter_input.jpg\";\n      Mat src = Imgcodecs.imread(file);\n\n      \/\/Creating an empty matrix to store the result\n      Mat dst = new Mat();\n\n      \/\/ Creating kernel matrix\n      Mat kernel = Mat.ones(2,2, CvType.CV_32F);\n      \n      for(int i = 0; i&lt;kernel.rows(); i++) {\n         for(int j = 0; j&lt;kernel.cols(); j++) {\n            double[] m = kernel.get(i, j);\n\n            for(int k = 1; k&lt;m.length; k++) {\n               m[k] = m[k]\/(2 * 2);\n            }\n            kernel.put(i,j, m);\n         }\n      }\n      Imgproc.filter2D(src, dst, -1, kernel);\n      Imgcodecs.imwrite(\"E:\/OpenCV\/chap11\/filter2d.jpg\", dst);\n      System.out.println(\"Image Processed\");\n   }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0438\u043c, \u0447\u0442\u043e \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432\u0445\u043e\u0434\u043d\u043e\u0435 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435&nbsp;<strong>filter_input.jpg,<\/strong>&nbsp;\u0443\u043a\u0430\u0437\u0430\u043d\u043d\u043e\u0435 \u0432 \u0432\u044b\u0448\u0435\u0443\u043a\u0430\u0437\u0430\u043d\u043d\u043e\u0439 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0435.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/coderlessons.com\/wp-content\/uploads\/2019\/07\/filter_input-3.jpg\" alt=\"\u0424\u0438\u043b\u044c\u0442\u0440 \u0432\u0432\u043e\u0434\u0430\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u0412\u044b\u0445\u043e\u0434<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b \u0432\u044b \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u0435 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u0432\u043e\u0434:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Image Processed<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u044f Filter2D \u0441\u0432\u043e\u0440\u0430\u0447\u0438\u0432\u0430\u0435\u0442 \u043e\u0431\u0440\u0430\u0437 \u0441 \u044f\u0434\u0440\u043e\u043c.&nbsp;\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u044d\u0442\u0443 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044e \u043d\u0430\u0434 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435\u043c, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043c\u0435\u0442\u043e\u0434&nbsp;Filter2D ()&nbsp;\u043a\u043b\u0430\u0441\u0441\u0430&nbsp;imgproc&nbsp;.&nbsp;\u041d\u0438\u0436\u0435 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u044d\u0442\u043e\u0433\u043e \u043c\u0435\u0442\u043e\u0434\u0430 \u2014 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-3311","page","type-page","status-publish","hentry","category-opencv"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages\/3311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/comments?post=3311"}],"version-history":[{"count":0,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages\/3311\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/media?parent=3311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/categories?post=3311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/tags?post=3311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}