nicknack

That's true, but you can assume that the color filter is consistant, right? So could you, pick a small patch of sky next to where the filter overlaps. The sky color is fairly consistant, so then you would have what the true color is, and what the color looks like under the filter. Is there any way to use that to figure out the color of the filter by itself, then somehow remove that from the image?

This is probably a really simple fix, but I'm still a beginner at photo manipulation. If I have a picture that is partly distorted by a color filter, is there any way I can negate the color distortion? For example, if I had a picture like this: where I can use the sky or grass or bricks as reference points, how would I cancel out the color and make the whole picture look normal?