{"id":6067,"date":"2019-01-26T17:51:39","date_gmt":"2019-01-26T17:51:39","guid":{"rendered":"http:\/\/www.garysieling.com\/blog\/?p=6067"},"modified":"2019-01-26T17:51:39","modified_gmt":"2019-01-26T17:51:39","slug":"draw-a-rectangle-on-an-image-with-javacv-in-scala","status":"publish","type":"post","link":"https:\/\/www.garysieling.com\/blog\/draw-a-rectangle-on-an-image-with-javacv-in-scala\/","title":{"rendered":"Draw a rectangle on an image with  javacv in Scala"},"content":{"rendered":"<p>The following will draw a high contrast black\/white box on an Tmage. this helps where the image may have large black\/white spots, and doesn&#8217;t rely on color to show a region, to make it easier on colorblind people.<\/p>\n<pre lang=\"java\">\nimport org.bytedeco.javacpp.opencv_imgcodecs._\nimport org.bytedeco.javacpp.opencv_core._\nimport org.bytedeco.javacpp.opencv_imgproc._\n\n    val image = imread(\"example.jpg\")\n    val pt1 = new Point(10, 10)\n    val pt2 = new Point(400, 100)\n    val white = new Scalar(255, 255, 255, 0)\n    val black = new Scalar(0, 0, 0, 0)\n    rectangle(image, pt1, pt2, black, 20, LINE_8, 0)\n    rectangle(image, pt1, pt2, white, 3, LINE_8, 0)\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Drawing a rectangle with opencv in Scala<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4],"tags":[407,480],"aioseo_notices":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/posts\/6067"}],"collection":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/comments?post=6067"}],"version-history":[{"count":0,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/posts\/6067\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/media?parent=6067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/categories?post=6067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/tags?post=6067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}