Question

I am writing an iOS as and I need to be able to do edge detection in the image. I actually want something similar to Photoshop’s trace contour. Since I basically need to get the simplest set of lines to work with.. Thing is I cannot seem to figure out how to do it and frankly I have 0 interest in OpenCV since I spent 5 hours today trying to get any of the 10 or so zips of it I downloaded to compile, in any way shape or form.
So I was hoping maybe some one could point me the right way to do it with what’s built in to the os.. or maybe an example

Answer 1

If haven’t used it myself, but are you looking for something like this? It’s basically a C++ wrapper and it declares a method called ImageWrapper *cannyEdgeExtract(float tlow, float thigh).