I followed most of the instructions on this question about getting the difference between two similar images, using an image with text, where I removed the text and recreated the object it was written on as though it never had the text, then I took the difference - it seems to have worked beautifully, but when I finish step 7, I'm left with a very ghostly equivalent of the words...
When I instead take the result of the "Copy Visible" step, which should be the difference between the original (B) and the version with the text removed (A), which appears to be just the text, and paste it into a third layer on top (I'll call it D, because it's different than the C in the other question), but with the mode in "Addition" instead of "Normal", overlayed on top of A (the background only), it shows the text as expected, but it's decidedly dimmer than I'd prefer.
I had expected to add the difference between the images back to the background, making what appears to be the complete original image, but it's not quite right...
I'm having trouble figuring out where the data I think should be there seems to be lost. I can get close to what I want by increasing the brightness and the contrast, and a small adjustment to colors, but why is it a problem to being with? is there a different mode I should use on one or both steps?