Re: LAB as working/interchange space
Re: LAB as working/interchange space
- Subject: Re: LAB as working/interchange space
- From: Chris Cox <email@hidden>
- Date: Thu, 24 May 2001 11:00:06 -0700
At 10:32 AM +1000 5/24/01, Tom Beckenham wrote:
on 24/5/01 5:08 AM, Chris Cox at email@hidden wrote:
Look at the encoding.
16 million colors in 8 bit/channel sRGB will transform to only 2.47
million colors in 8 bit/channel LAB (without dithering).
Huh? RGB has 3 channels of 8 bits each. So does Lab. Which means that each
has 24 bits each. Doesn't that mean the same number of colors?
The total LAB space is huge -- and sRGB takes up only a small
percentage of the LAB space. So converting sRGB to LAB means you're
filling up only that percentage of the LAB space covered by sRGB. So
16.7 million distinct sRGB colors get converted to 2.47 million
distinct LAB colors.
Chris