In calibrating my camera, I used a paper printed chessboard. I guess because of the nature of the paper, it is not "perfect" since there will be some crumples/wrinkles. In 15 images that I have used, below are 3 of the examples of the original image, and its undistorted version.
As you can see, there are some wrinkles at the paper (especially at the edge). Can this somehow greatly affects the camera matrix and distortion coefficients that will be calculated, or I am just being overly paranoid here?
Thanks.
