Shataya's profile - activity

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2013-03-26 03:08:43 -0600	answered a question	The homography tutorial in java I did this tutorial in Android... I think you have a type problem again.. :) Here is my solution with "Mat" for the corners: Mat hg = Calib3d.findHomography(obj, scene); Mat obj_corners = new Mat(4,1,CvType.CV_32FC2); Mat scene_corners = new Mat(4,1,CvType.CV_32FC2); obj_corners.put(0, 0, new double[] {0,0}); obj_corners.put(1, 0, new double[] {mat2.cols(),0}); obj_corners.put(2, 0, new double[] {mat2.cols(),mat2.rows()}); obj_corners.put(3, 0, new double[] {0,mat2.rows()}); Core.perspectiveTransform(obj_corners,scene_corners, hg); Core.line(mat, new Point(scene_corners.get(0,0)), new Point(scene_corners.get(1,0)), new Scalar(0, 255, 0),4); Core.line(mat, new Point(scene_corners.get(1,0)), new Point(scene_corners.get(2,0)), new Scalar(0, 255, 0),4); Core.line(mat, new Point(scene_corners.get(2,0)), new Point(scene_corners.get(3,0)), new Scalar(0, 255, 0),4); Core.line(mat, new Point(scene_corners.get(3,0)), new Point(scene_corners.get(0,0)), new Scalar(0, 255, 0),4);