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+--- Thread: Suggestion on removing a pattern from a photo? (/Thread-Suggestion-on-removing-a-pattern-from-a-photo)
Suggestion on removing a pattern from a photo? - Muzician - 03-28-2024
Looking for suggestions on how to remove or reduce a pattern like this without destroying what detail there is. Including a Google Drive link since it's not letting me embed pics in posts.
Thanks!
https://drive.google.com/file/d/16ChzO6y4n4DLj_O3yqiXxuLbfECaO3GJ/view?usp=sharing
RE: Suggestion on removing a pattern from a photo? - rich2005 - 03-28-2024
Not much hope with that one in my opinion.
You can use a fast-fourier-transform (FFT) and since you are using Windows you might try the gimp_gmic_qt plugin http://www.gmic.eu which has a version in the frequencies section.
Works like this: https://i.imgur.com/xB45nOZ.mp4 to give this
[attachment=11558]
The problem with this type of image is, try and sharpen the result and the pattern is restored.
Is that your own scan ? Part of a larger image ? Ofnuts has a procedure where you carefully scan from different directions and "difference" layers. Not easy to do.
RE: Suggestion on removing a pattern from a photo? - Muzician - 03-28-2024
(03-28-2024, 05:53 PM)rich2005 Wrote: Not much hope with that one in my opinion.
You can use a fast-fourier-transform (FFT) and since you are using Windows you might try the gimp_gmic_qt plugin http://www.gmic.eu which has a version in the frequencies section.
Works like this: https://i.imgur.com/xB45nOZ.mp4 to give this
The problem with this type of image is, try and sharpen the result and the pattern is restored.
Is that your own scan ? Part of a larger image ? Ofnuts has a procedure where you carefully scan from different directions and "difference" layers. Not easy to do.
Thanks!
It's part of a larger image though not my scan, taken off Facebook.
RE: Suggestion on removing a pattern from a photo? - denzjos - 03-28-2024
An old post from rich : https://www.gimp-forum.net/Thread-Descreen?highlight=descreen
I tried the script with this values :
[attachment=11559]
RE: Suggestion on removing a pattern from a photo? - Muzician - 03-28-2024
(03-28-2024, 05:53 PM)rich2005 Wrote: Works like this: https://i.imgur.com/xB45nOZ.mp4 to give thisNext question - how do I get mine to look like yours with color icons for the tools? Lol. Mine is black & white.
RE: Suggestion on removing a pattern from a photo? - rich2005 - 03-28-2024
(03-28-2024, 06:14 PM)Muzician Wrote:(03-28-2024, 05:53 PM)rich2005 Wrote: Works like this: https://i.imgur.com/xB45nOZ.mp4 to give thisNext question - how do I get mine to look like yours with color icons for the tools? Lol. Mine is black & white.
Back to the original question, give descreen a try as denzjos post
Coloured toolbox icons? An easier question. Edit -> Preferences -> Interface ->Icon Theme.
[attachment=11560]
..and the one above that 'Theme' for lighter overall if required.
RE: Suggestion on removing a pattern from a photo? - rich2005 - 03-28-2024
Another way, FFT can be a little tricky to implement sometimes. This again using the gimp_gmic_qt plugin
Use the Grey Descreen filter and adjust the values to lose the pattern. Set the output to New Layer
[attachment=11561]
Set the Layer mode of the grey layer to Luminance.
[attachment=11562]
RE: Suggestion on removing a pattern from a photo? - Muzician - 03-29-2024
(03-28-2024, 06:07 PM)denzjos Wrote: An old post from rich : https://www.gimp-forum.net/Thread-Descreen?highlight=descreen
I tried the script with this values :
Many thanks - I had to lower the sensitivity a little because of artifacting in the larger photo but those settings were in the right ballpark. It definitely improved it.
I appreciate the assistance!
I'll check out the other method Rich suggested as well.
RE: Suggestion on removing a pattern from a photo? - sallyanne - 04-01-2024
[attachment=11573]Using gimp's wavelet decompose and levels. Gmic's local contrast enhancement and constrained sharpen I got this.
Plus smooth diffusion gets rid of some of those lines
[attachment=11575]
Or you could try GMIC's unstrip then Gimps levels (auto input levels)