Contours in OpenCV

hi,
i'm wondering if there are a manner to build a contours structure witch contain other contours?cause i want to extract contours from a subimage on a principal image and re-extract other contours from a second subimage on a same principal image and gather the two sets of contours in one in order to draw them with cvDrawContours.

thx.
Last edited on
Any suggestion? idea?

thanx
@taikovic You tried setting the ROI you're interested in? Setting the ROI ensures you extract contours only from the ROI you've selected.

This article might be helpful.. maybe..

http://www.aishack.in/2010/01/an-introduction-to-contours/
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