Dang, I should've guessed that. I was working on a project last month
building monster testcharts for use in a GMG Colorproof RIP (they use
straight tables) and I quickly discovered the enormity of the chart
if you tried to cover all combinations of C, M, Y and K. I ended up
settling on 16x16x16 for CMY and less than half of that for K and
ended up with about an 11,000 patch testchart. I decided that, on my
DTP70, 6 pages of patches was not an reasonable number of pages to
measure (about 20-25 minutes) which led me to the 11,000 patch
number. And it worked AMAZINGLY well, thank you for asking!
Terry
On Jul 19, 2006, at 10:50 AM, Stéphane Beaudry wrote:
Since a A2B table has a grid size of "grid points at the power of
colorant
quantity), a A2B table for a CMYK profile with 33 grid points would
require
1185921 table entries per intent, while the same thing for a RGB
profile
only require 35937.
If you reduce the amount of points to 17 for a CMYK profile, you
fall to
83521 entries...
