06-25-2021, 01:10 PM
After seeing the post by Rich about the Mesh tool in Krita, I decided not to do anything here. Better minds have already made tools that are superior to anything I could produce.
You are trying to use existing tools. Ok. I cannot help since I have never used the Lens distortion tool and I don't know how it works. Have you tried that Mesh tool in Krita?
When I looked at the picture Rich posted I got the feeling that the "simplified version of the 16-point transform" that I mentioned in post #3 is nothing new either (well, that is just what I expected). Namely, the screenshot looks like there is a "curvy quadrilateral with each side a Bezier arc". The control points (handles) look just like that. So, my great idea is maybe already invented and implemented.
I think I shall leave transforming images to those who can do it better. I stick to transforming paths. There I can perhaps do something nobody else has done or is doing, at least not in Gimp.
You are trying to use existing tools. Ok. I cannot help since I have never used the Lens distortion tool and I don't know how it works. Have you tried that Mesh tool in Krita?
When I looked at the picture Rich posted I got the feeling that the "simplified version of the 16-point transform" that I mentioned in post #3 is nothing new either (well, that is just what I expected). Namely, the screenshot looks like there is a "curvy quadrilateral with each side a Bezier arc". The control points (handles) look just like that. So, my great idea is maybe already invented and implemented.
I think I shall leave transforming images to those who can do it better. I stick to transforming paths. There I can perhaps do something nobody else has done or is doing, at least not in Gimp.