I'm doing a project in Fingerprint Matching. I am beginning to code it now. There are a number of steps involved prior to minutia extraction and the comparison. I am not sure how to change the image in C++, I will be converting to gray-scale, smoothing, thinning it etc. How is the image accessed, how do I change the pixels individually?? Is it a two-dimensional array of numbers? If you help me with this I would be very grateful.