Tutorial: Transparency on Traditional scanned art.

Okay, so we’ve all had it once that we scanned something in and wanted to make it transparent. LIke, removing the white from a lineart on white paper. For this you can set the layer on multiply or even use masking techniques.
In my case, I’m doing a water-coloured webcomic, and I wanted to remove the white, without damaging the colours. So that I could overlap the picture onto another and the colours would blend.

I was before messing around with masking techniques, but I had problem with keeping the colours right. I’ve now found a technique that’s a bit more easy, and which allows me to draw this:

What you need:
*A picture(scanned in or otherwise)
*A computer with the gimp installed.

My version of the gimp is Dutch, so I’ll be putting the english name of the steps in bold.


A tryout with watercolour and masking techniques.

Sunny days always make me want to water-colour, so that’s what I did.

I borrowed a scanner from downstairs and scanned some water-colouring in, and edited it with masking techniques to get transparantcy in there.
Worked out pretty well.