Hi, I have a plot of an image of which I'd like to interactively select a quadrilateral. This is for a homography operation (perspective correction). It suffices if the quadrilateral can be dragged by only its vertices (display the vertices as rects or circled to click within).
In principle I want to implement a tool similar to the "Perspective" tool of The GIMP in corrective mode. The whole image processing and geometric transformation is already implemented, but now I need a user interface. Since I'm already making heavy use of Matplotlib I'd like to stay within this. After the user applied the homography the next step is placing the calibration markers, which would be basically one axvline and two axhlines to be dragged to reference points on the previously perspective corrected image. How do I implement such interaction elements? Wolfgang ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
