{"id":16871,"date":"2022-10-22T10:26:08","date_gmt":"2022-10-22T04:56:08","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-opencv-to-android-opencv-java\/"},"modified":"2022-10-22T10:26:08","modified_gmt":"2022-10-22T04:56:08","slug":"solved-opencv-to-android-opencv-java","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-opencv-to-android-opencv-java\/","title":{"rendered":"[Solved] OpenCV to android Opencv (JAVA)"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-30423451\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"30423451\" data-parentid=\"30295806\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>I hope this might help you as I am doing something similar.<\/p>\n<pre><code>Mat gray8 = new Mat(marked.size(), CvType.CV_8UC1);\n    Imgproc.cvtColor(marked, gray8, Imgproc.COLOR_RGB2GRAY);    \n    Scalar mean = Core.mean(gray8);\n    Imgproc.threshold(gray8, gray8, mean.val[0], 255,\n            Imgproc.THRESH_BINARY);\n    \/*Imgproc.erode(gray8, gray8, new Mat(), new Point(-1, -1), 2);*\/\n    List&lt;MatOfPoint&gt; contours = new ArrayList&lt;MatOfPoint&gt;();\n    MatOfInt4 hierarchy = new MatOfInt4();\n    Imgproc.findContours(gray8, contours, hierarchy,\n            Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE);\n    Toast.makeText(getApplicationContext(), contours.size()+\" yo\", Toast.LENGTH_SHORT).show();\n    for (int contourIdx = 0; contourIdx &lt; contours.size(); contourIdx++) {\n        Imgproc.drawContours(orginal, contours, contourIdx, new Scalar(0, 0, 255), -1, 1, hierarchy, 50, new Point(1,1));\n    }\n    gray8.convertTo(gray8, CvType.CV_32S);\n    Imgproc.watershed(orginal, gray8);\n    gray8.convertTo(gray8, CvType.CV_8UC1);\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved OpenCV to android Opencv (JAVA) <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] I hope this might help you as I am doing something similar. Mat gray8 = new Mat(marked.size(), CvType.CV_8UC1); Imgproc.cvtColor(marked, gray8, Imgproc.COLOR_RGB2GRAY); Scalar mean = Core.mean(gray8); Imgproc.threshold(gray8, gray8, mean.val[0], 255, Imgproc.THRESH_BINARY); \/*Imgproc.erode(gray8, gray8, new Mat(), new Point(-1, -1), 2);*\/ List&lt;MatOfPoint&gt; contours = new ArrayList&lt;MatOfPoint&gt;(); MatOfInt4 hierarchy = new MatOfInt4(); Imgproc.findContours(gray8, contours, hierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE); Toast.makeText(getApplicationContext(), &#8230; <a title=\"[Solved] OpenCV to android Opencv (JAVA)\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-opencv-to-android-opencv-java\/\" aria-label=\"More on [Solved] OpenCV to android Opencv (JAVA)\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[452,323,1087],"class_list":["post-16871","post","type-post","status-publish","format-standard","hentry","category-solved","tag-android","tag-java","tag-opencv"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] OpenCV to android Opencv (JAVA) - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-opencv-to-android-opencv-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] OpenCV to android Opencv (JAVA) - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] I hope this might help you as I am doing something similar. Mat gray8 = new Mat(marked.size(), CvType.CV_8UC1); Imgproc.cvtColor(marked, gray8, Imgproc.COLOR_RGB2GRAY); Scalar mean = Core.mean(gray8); Imgproc.threshold(gray8, gray8, mean.val[0], 255, Imgproc.THRESH_BINARY); \/*Imgproc.erode(gray8, gray8, new Mat(), new Point(-1, -1), 2);*\/ List&lt;MatOfPoint&gt; contours = new ArrayList&lt;MatOfPoint&gt;(); MatOfInt4 hierarchy = new MatOfInt4(); Imgproc.findContours(gray8, contours, hierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE); Toast.makeText(getApplicationContext(), ... 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Mat gray8 = new Mat(marked.size(), CvType.CV_8UC1); Imgproc.cvtColor(marked, gray8, Imgproc.COLOR_RGB2GRAY); Scalar mean = Core.mean(gray8); Imgproc.threshold(gray8, gray8, mean.val[0], 255, Imgproc.THRESH_BINARY); \/*Imgproc.erode(gray8, gray8, new Mat(), new Point(-1, -1), 2);*\/ List&lt;MatOfPoint&gt; contours = new ArrayList&lt;MatOfPoint&gt;(); MatOfInt4 hierarchy = new MatOfInt4(); Imgproc.findContours(gray8, contours, hierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE); Toast.makeText(getApplicationContext(), ... 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