
and selected from the web colours palette.
meh. I need to make more use of my Photoshop for dummies book.
( ,
Tue 15 Nov 2005, 20:35,
archived)
meh. I need to make more use of my Photoshop for dummies book.

That's just a saved set of colours from the last image you opened, or the last image you saved, or something like that, I forget. Wouldn't have contained any of the exact colours used in the background of the new image, so that's why it ended up dithered.
By the way I recommend the built-in online help, it's very good.
( ,
Tue 15 Nov 2005, 20:38,
archived)
By the way I recommend the built-in online help, it's very good.

I'll remember that in future.
So what does 'perceptual' mean?
( ,
Tue 15 Nov 2005, 20:39,
archived)
So what does 'perceptual' mean?

Perceptual
Creates a custom palette by giving priority to colors for which the human eye has greater sensitivity.
Selective
Creates a color table similar to the Perceptual color table, but favoring broad areas of color and the preservation of Web colors. This option usually produces images with the greatest color integrity.
Adaptive
Creates a palette by sampling the colors from the spectrum appearing most commonly in the image. For example, an RGB image with only the colors green and blue produces a palette made primarily of greens and blues. Most images concentrate colors in particular areas of the spectrum. To control a palette more precisely, first select a part of the image containing the colors you want to emphasize. Photoshop weights the conversion toward these colors.
/help menu
Hmm, I might have been completely wrong about custom, it says it's the same as adaptive. Meh. I always use perceptual. Unless I edit the colour table, which makes it into custom.
( ,
Tue 15 Nov 2005, 20:41,
archived)
Creates a custom palette by giving priority to colors for which the human eye has greater sensitivity.
Selective
Creates a color table similar to the Perceptual color table, but favoring broad areas of color and the preservation of Web colors. This option usually produces images with the greatest color integrity.
Adaptive
Creates a palette by sampling the colors from the spectrum appearing most commonly in the image. For example, an RGB image with only the colors green and blue produces a palette made primarily of greens and blues. Most images concentrate colors in particular areas of the spectrum. To control a palette more precisely, first select a part of the image containing the colors you want to emphasize. Photoshop weights the conversion toward these colors.
/help menu
Hmm, I might have been completely wrong about custom, it says it's the same as adaptive. Meh. I always use perceptual. Unless I edit the colour table, which makes it into custom.