Quote:
Originally Posted by mattbeals
Indexed images have a base color space, RGB or CMYK. Grayscale is inherently indexed because it contains 256 or less unique colors. RGB and CMYK indexed images have less than 256 unique colors. Which is why I like to compare them to flate compressed images. You can think of it as a losless form of image compression.
|
Hi Matt,
Still not clear to me. Perhaps more clarity in what you mean by "base color space" ?
Here is an RGB image:
Here is the same image converted to indexed color mode in PShop:
Is this what is being discussed as indexed color?
Also, I don't understand how an RGB image that has been reduced to a palette of 256 colors can be thought of as a lossless form of image compression. Please explain.
thx, g
