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How to replace one color with transparent


elfguy

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This has been bugging me for a while.. How do you replace one color in an image, say white, with transparent? I tried Recolor but it doesnt seem to be working with alpha.

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There's a plugin called "color to alpha."

Alternatively, you can use the magic wand in Global mode (hold Shift). Then just hit "delete." :-)

 

The Doctor: There was a goblin, or a trickster, or a warrior... A nameless, terrible thing, soaked in the blood of a billion galaxies. The most feared being in all the cosmos. And nothing could stop it, or hold it, or reason with it. One day it would just drop out of the sky and tear down your world.
Amy: But how did it end up in there?
The Doctor: You know fairy tales. A good wizard tricked it.
River Song: I hate good wizards in fairy tales; they always turn out to be him.

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