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How to change the white lines to black?

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Selina Loh
Selina Loh am 25 Okt. 2017
Beantwortet: Rik am 25 Okt. 2017
Is it possible to change the white lines to black?

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Rik
Rik am 25 Okt. 2017
Yes.
If you convert this to a greyscale image, you should be able to determine a threshold that covers most white/grey pixel. You could also add additional checks if the RBG values are sufficiently similar (i.e. a grey or white pixel)

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