Paul

Thanks for reply, For some reason, the `undist_coords = mod.apply_subpixel_distortion()` method gives me a numpy array full of 0. tried multiple lens / cameras. code used : ``` mod =...

You're right, TCA wasn't available for this lens. undist_coords seems correct with a valid TCA calibrated lens. It's kind of wierd, but with subpixel coords, cv2.remap (per channel) is going...