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OpenCV Java how to access or convert List to a list of points (x,y)

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What can I do with a List to get a list for example with a coordinates of the contours? So this is the photo I want to detect the lines from: ![image description](https://dl.dropboxusercontent.com/u/69111201/5.jpg_NoEntities.png) when I print the contour list it gives me a long text which i can't find out what to do with that like : > [Mat [ 2*1*CV_32SC2, isCont=true, isSubmat=false,nativeObj=0xd2095b0, dataAddr=0xd24d410 ],> Mat [ 3*1*CV_32SC2, isCont=true, isSubmat=false, nativeObj=0xd209620, dataAddr=0xd1c88e0 ] Can I use it somehow or is there any other method to take the contours from the image and have the coordinates or something like that? So I have an image of line, already processed through the filters like grayscale, canny edge detector and I'm doing a function findContours and a draw contours: Imgproc.findContours(mat, aContours,aHierarchy, Imgproc.RETR_LIST,Imgproc.CHAIN_APPROX_SIMPLE);` Imgproc.drawContours(mat,aContours,-1, color,CONTOUR_LINE_THICKNESS); and I want a coordinates of a found contours from the findcontours function. Could you help me?

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