I would like to change the colors of a Photoshop PSD in Adobe Illustrator. Can a raster image's color be altered in Illustrator?
As far as I'm aware, the only way to alter the colors of the pixels in a raster image is via Phantasm.
Or by using "tricks"... such as drawing a shape on top of the raster image, filling it with a color, then changing the shape's blend mode.
Ideally, all raster editing should be done in a raster application.
no "proper" way. You could turn channels separately to bitmaps, save them as tiff and import them in AI.