Barrel distortion correction algorithm to correct FishEye lens - failing to implement with Java

Question

I have a large bulk of photographs taken with a fisheye lens. As I want to do some image-processing (e.g. edge detection) on the photos I want to remove the barrel distortio

Answer 1

Probably your radial distortion parameters are too large, and the image became packed on a sphere. Try to put smaller values in a,b,c and d.