Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

White margins - when white = light cyan

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eL_PuSHeR
Posts: 125
Joined: 28 Jun 2010, 15:25

White margins - when white = light cyan

Post by eL_PuSHeR » 05 Oct 2011, 09:05

Hello.

I have another problem. Sometimes, when I process true-colour source images under ST, the output margins become cyan instead of white (I have double-checked that the white margins option is applied to all pages). Here is an example image. I get a cyan line at the top margin. Maybe you can't reproduce with just one page only. Sorry for the filesize. It's 2.5MB

Image

PS: I think that rather than the margins themselves it's the underlying canvas differences after deskewing. I am not sure though.

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dingodog
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Re: White margins - when white = light cyan

Post by dingodog » 05 Oct 2011, 09:44

you can use Imagemagick (or, best option, graphicsmagick, omit gm to use code with imagemagick)

Code: Select all

gm convert mot00page0033.png  -shave 22x22  -bordercolor white  -border 22x22  bordered.png
result:

Image

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