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T O P I C    R E V I E W
AndNit Posted - Sep 30 2019 : 17:29:31
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.



original




How I would like it to be

4   L A T E S T    R E P L I E S    (Newest First)
rmklever Posted - Oct 19 2019 : 05:54:31
Hi AndNit,

You could also try using

ImageEnProc.AutoImageEnhance3(0.9, 0)

It gives a nice image





Roy M Klever
Klever on Delphi - www.rmklever.com
AndNit Posted - Oct 01 2019 : 16:16:00
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. ..
xequte Posted - Sep 30 2019 : 20:41:16
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.

Nigel
Xequte Software
www.imageen.com
xequte Posted - Sep 30 2019 : 20:29:30
Hi

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.



Nigel
Xequte Software
www.imageen.com