Rick:
Thanks, but I'm a little under experienced in this area.
The "no slide" is actually a picture of the lens fall off.
That is, it has dark corners and a light center. (Black and white) I can then invert it so the corners are light and the center is dark. What I need to do is apply the...
I'm copying thousands slides (Scanner takes much too long) using a digital camera and slide projector. Of course the center is hot and the corners are dark. I want to take a picture without a slide, invert it and use it to correct only the brightness. (Non-linear) I don't want to add pixels...
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