@Ailantd So that you can easily take them out after scanning? :D

You can get magic scanner-invisible pencils too that are in a special blue colour :O

@Curator Oh? So THIS is what my friend does! Saw him sketch with a red pencil a while ago but never thought about asking why he's doing that. So far I've been using normal pencils and erasing them after the lineart is done, but I usually just end up with crinkled paper and smudged lines. 🙈 Will look into these, thanks for the heads-up!

@bestiaexmachina Yeah! IN theory you can use any colour that's not black, then you can selectively remove the colour after scanning, in whatever software you use to touch up, like Krita or Photoshop or whatever. But yes there are also pencils you can get that are invisible to scanners :O

@Curator @bestiaexmachina Yes, this exactly! I used to draw my comics with a "non-photo blue" pencil and the scanners/copy machines would key it out as if the pencils weren't even there. So convenient! No need to risk smudging your inks because you don't need to erase.

@Ozzzylot @Curator @bestiaexmachina Stuff I learned in art school twenty something years ago... There's a history of the particular color blue used in graph paper, and some lined notebook paper. It get called non-repro, or non-photo blue. Photocopiers have always been programed to not pick up that color. But before Xerox there was a particular film used in the copy cameras in the print industry that did not pick up that color.

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@edyother
honestly this even works with gray lines (or gray dots?) if you can use a dark ink before photographing/scanning. you just put your black/white threshold between the brightness of the gray you want to eliminate and the black of the ink you would like to keep.

blue makes it easier though

@Ozzzylot @Curator @bestiaexmachina

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