Fremantle
· Wikisource · archiving ·
I quite often find myself extracting engravings and ink sketches from scanned works. Wikisource has some info about how to do it, but this is roughly how I do it in Gimp:
- Use the Mono Mixer tool (the
Colors
>Components
>Mono Mixer
menu item), and twiddle the colours till it looks good. - Adjust the levels (the
Colors
>Levels…
menu item). - Posterize down to two colours.
-
Original
-
After Mono Mixer
-
After Levels
-
After Posterize
Then a bit of clean up of the wayward bits.
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