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I have a question concerning anti-aliasing a graphic. Im currently using Photoshop CS2 running on Windows XP.
I have a graphic that I want to use with backgrounds of different solid colors and even the occasional multi-colored background. I want to smooth out the jaggies of the graphic in such a way that the smoothed graphic can be placed on a separate layer and the desired background can be inserted on a layer below.
I can successfully import an anti-aliased graphic IF I import the graphic and its background at the same time. But then the anti-aliased graphic is suitable for use only with that particular color background. I would like to eliminate this extra step if possible.
Suppose the graphic were black on a white background. The anti-alias pixels might be 75% gray, 50% gray, and 25% gray. Conceptually, it doesnt seem like it should be all that difficult for the anti-alias pixels to be black at 75% transparency, black at 50% transparency, and black at 25% transparency. Then, in theory, wouldnt this type of transparency anti-aliasing work for any color background placed underneath it? Is this possible in Photoshop CS2? If not, is it possible in a later version (might be a good reason to upgrade)?
Ive done some searching on the net without results. A few sites mention the possibility of doing this with PNG files but didnt explain HOW to do it. Ive been using Photoshop for several years but only for processing photos. No previous graphics experience, so I need step-by-step instructions.
Many thanks.
I have a graphic that I want to use with backgrounds of different solid colors and even the occasional multi-colored background. I want to smooth out the jaggies of the graphic in such a way that the smoothed graphic can be placed on a separate layer and the desired background can be inserted on a layer below.
I can successfully import an anti-aliased graphic IF I import the graphic and its background at the same time. But then the anti-aliased graphic is suitable for use only with that particular color background. I would like to eliminate this extra step if possible.
Suppose the graphic were black on a white background. The anti-alias pixels might be 75% gray, 50% gray, and 25% gray. Conceptually, it doesnt seem like it should be all that difficult for the anti-alias pixels to be black at 75% transparency, black at 50% transparency, and black at 25% transparency. Then, in theory, wouldnt this type of transparency anti-aliasing work for any color background placed underneath it? Is this possible in Photoshop CS2? If not, is it possible in a later version (might be a good reason to upgrade)?
Ive done some searching on the net without results. A few sites mention the possibility of doing this with PNG files but didnt explain HOW to do it. Ive been using Photoshop for several years but only for processing photos. No previous graphics experience, so I need step-by-step instructions.
Many thanks.
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