re: rgb versus cmyk
re: rgb versus cmyk
- Subject: re: rgb versus cmyk
- From: email@hidden
- Date: Mon, 2 Jul 2001 12:30:02 -0700
Just a brief note responding to your statement that "you always use a
perceptual
rendering intend (setting a bigger color space to a smaller one)" going from
RGB to CMYK.
This isn't true. Remember, a perceptual rendering intent maintains the
relationships between all colors, at the expense of the exact color values.
So, for example, if you were converting an RGB illustration with a color
that was INSIDE the CMYK gamut you were transforming to, a perceptual intent
would change the color anyway, which is NOT what is always desired.
For example, I sometimes need to convert illustrations or scans created in
RGB which contain very precisely defined colors in the CMYK gamut which I
don't want to shift, so I use a relative colorimetric intent. If I were
converting a photo or portrait or somesuch, where the impression was more
important than the exact colors, I would use perceptual.
-- Jeff Harmon
Colorhythm