image processing

Question

how can i find the difference between two images based on the pixel difference

Answer 1

there are a lot of methods, ranging from several lines of code to a big project.

you can try:

1. the pixel-level difference, i.e. image matrix A - image matrix B

2. the color histogram difference. You can also split the images into several small windows, and aggregate histogram difference in each window.

3. exact features, like Gist, Sift etc. That's the state-of-the-art/research approach.

Answer 2

You could implement a Sobel Filter

You can implement filters like that pretty quickly in C# using the AForge framework