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Is it possible to create an alpha-transparency mask from a flat raster image?
For example, I have a bitmap which was alpha-blended onto a solid color (fuschia) background. I want to be able to re-create the original aplha-blended without the background. I think this can be done if the program can someway consider the background color as 100% opague and subtract from the other colors depending on their relation to the background color. Is this possible?
Here’s the flattened image I’m trying to restore to it’s alpha-blended original:
http://wwww.ejstembler.com/images/8ball.bmp
For example, I have a bitmap which was alpha-blended onto a solid color (fuschia) background. I want to be able to re-create the original aplha-blended without the background. I think this can be done if the program can someway consider the background color as 100% opague and subtract from the other colors depending on their relation to the background color. Is this possible?
Here’s the flattened image I’m trying to restore to it’s alpha-blended original:
http://wwww.ejstembler.com/images/8ball.bmp
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