Hello, I've been trying to convert this image (and images with the same pattern, aged background (yellowish) and written letters) to black and white, but I have not been able to achieve good results ... I hope I can count on your help ...
The result usually blurs the letters and keeps a very large amount of black dots in the image.
Please try the TImageEnProc.DoPreviews method to see what gives the best results (You can see this in the demo ImageEditing\CompleteEditor\PhotoEn.dpr).
For example, this is -37 sat and +17 Lum in HSL adjustment.
The difficulty is that the image has text coming through from the reverse of the page of the same shade as the text aliasing. That will be hard to eliminate.
What method did you use to get your desired output? You should be able to do the same in ImageEn.
Good afternoon, Thanks for the help. I came to the conclusion that black and white won't look nice with these very old images ... I started working with the grayscale option, before that I decrease the image saturation and move the balance of brightness and contrast. ..
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Old documents for black and white
Posted - Sep 30 2019 : 17:29:31
