Gimp Question

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Bean Bunny
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Gimp Question

Post by Bean Bunny »

I found a coloring tuturial for photoshop here: http://xenith.keenspace.com/tutorial1.htm. I was able to follow it using Gimp, up until a certian point ... I can't get Gimp to select every thing in the gray channel. (I can't press control + 1, obviously, and right clicking gets me nowhere.) What do I do? Or, is there a better way to color in Gimp?

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Taiwanimation
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Post by Taiwanimation »

Hmm., dont know off the top of my head, you can try a search engine as lots of GIMP faqs exist such as this one: http://www.bl.physik.tu-muenchen.de/rec ... .html#SEC2
Image

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Faub
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Post by Faub »

Oh, I see what they're doing. In the GIMP you don't need to go through all that.

Duplicate the layer and select the top one. Set the mode to RGB (Image -> Mode -> RGB), select all (Ctrl-A), then Filters -> Colors -> Color to Alpha. The default will be white. You don't want to change this. Click OK. The layer will have all the white in it transformed into alpha (transparency). Anything gray will have whatever white was in it transformed into alpha. The effect is that the lines stay, the white goes away and you don't have any funky gray fuzz on the insides of your lines.

Before you filter color to alpha, you should probably set the contract a little higher. That black line may not be entirely black. If it's not it will become partially transparent when you do the filter.

Another method that works in both photoshop and GIMP is to duplicate the layer and set the top layer to Multiply (burn) from the drop box in layers channels and paths. Anything white is transparent to the lower layers. Anything truly black is opaque so it's the same effect. The only difference is there must be some color on a lower layer to make the upper layer appear at all.

Bean Bunny
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Post by Bean Bunny »

Wow! Thanks! That's really nice of you! I was able to digitally color my first picture ... I'm so proud of me!

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