I'm working on a large number of images for an Android target. The target uses RGB565 format. Is it possible to configure color proofing on Photoshop (and illustrator would be good) to display with the color range of RGB565. I haven't been able to work this one out and have resorted to saving the image as a BMP in RGB565 format then loading it back in to check for atrifacts and banding etc.
Just to clarify this: Soft Proofing is not possible, because RGB565 isn't a color space
but merely the code format R 5 bit, G 6 bit , B 5 bit.
The question is probably, how to get a reasonable preview concerning quantization
effects (banding, as mentioned).
Image > Adjustment > Posterization
with 32 levels (2^5=32) creates a preview for RGB555, which can be considered as
a kind of worst case test for RGB565.
But if the real conversion RGB888 --> RGB565 is executed with dithering, then the
test as above is no more relevant.
Best regards --Gernot Hoffmann
Gernot, Many thanks, yes you are absolutly right I'm looking for a preview rather than a color proof.
Android takes the most significant bits of an RGB 888 file to display the 565 so no dithering is performed by default. Your method gives me exactly what I need.