Hello,
Could you please tell me how I can cut image from the other image per coordinates in opencv. It should not be just choise of the region of interest but it should be created new IplImage object. Unfortunately I didn't find it in Google.
OpenCV 2.4:
src(Rect(left, top, src.cols, src.rows)).copyTo(dst);
or
cv::Mat img = ...;
cv::Mat subImg = img(cv::Range(0, 0), cv::Range(100, 100)).clone();
Mahdi, in your first example you are inserting whole src into dst (i.e. dst >= src), while qwerty wanted to copy part of src to dst (i.e. dst<=src). As for second example, it does not perform copy operation, but just defining ROI.
Mat dst;
src(Rect(roiLeft,roiTop,roiWidth,roiHeight)).copyTo(dst);
or
Mat dst = src(Rect(roiLeft,roiTop,roiWidth,roiHeight)).clone();
Asked: 2012-10-30 23:12:15 -0600
Seen: 16,571 times
Last updated: Oct 31 '12