In https://github.com/steren/stereo-img/issues/21, I hardcoded the assumption that any picture taken with Canon EOS R5 RF5.2mm F2.8 L Dual Fisheye was fisheye, but that's not true if they have been processed.
We should look at pixel colors in the corner and middle of the image to see if they are black. If they are, assume fisheye
In https://github.com/steren/stereo-img/issues/21, I hardcoded the assumption that any picture taken with Canon EOS R5 RF5.2mm F2.8 L Dual Fisheye was fisheye, but that's not true if they have been processed.
We should look at pixel colors in the corner and middle of the image to see if they are black. If they are, assume fisheye