CALCULATION
Area 1
jpeg color r=0.50, g=0.08, b=0.37
camera color r=0.21, g=0.12, b=0.08
Area 2
jpeg color r=0.00, g=0.01, b=0.18
camera color r=0.00, g=0.02, b=0.03
Area 3
jpeg color r=0.08, g=0.39, b=0.00
camera color r=0.09, g=0.17, b=0.03
Area 4
jpeg color r=0.37, g=0.01, b=0.00
camera color r=0.14, g=0.04, b=0.01
Area 5
jpeg color r=0.60, g=0.47, b=0.53
camera color r=0.28, g=0.31, b=0.14
Area 6
jpeg color r=0.69, g=0.57, b=0.52
camera color r=0.34, g=0.38, b=0.15
Area 7
jpeg color r=0.77, g=0.67, b=0.51
camera color r=0.42, g=0.47, b=0.16
Area 8
jpeg color r=0.53, g=0.66, b=0.19
camera color r=0.29, g=0.39, b=0.10
Area 9
jpeg color r=0.42, g=0.63, b=0.12
camera color r=0.24, g=0.35, b=0.09
Area 10
jpeg color r=0.45, g=0.66, b=0.58
camera color r=0.25, g=0.39, b=0.15
Area 11
jpeg color r=0.55, g=0.70, b=0.04
camera color r=0.31, g=0.39, b=0.08
Area 12
jpeg color r=0.73, g=0.64, b=0.43
camera color r=0.39, g=0.43, b=0.15
Area 13
jpeg color r=0.66, g=0.71, b=0.56
camera color r=0.35, g=0.46, b=0.17
Area 14
jpeg color r=0.78, g=0.70, b=0.46
camera color r=0.44, g=0.49, b=0.16
Area 15
jpeg color r=0.00, g=0.02, b=0.24
camera color r=0.01, g=0.03, b=0.04
Area 16
jpeg color r=0.59, g=0.17, b=0.37
camera color r=0.25, g=0.17, b=0.10
Area 17
jpeg color r=0.23, g=0.52, b=0.16
camera color r=0.16, g=0.27, b=0.08
Area 18
jpeg color r=0.35, g=0.25, b=0.15
camera color r=0.17, g=0.17, b=0.06
Area 19
jpeg color r=0.56, g=0.65, b=0.07
camera color r=0.31, g=0.37, b=0.08
Area 20
jpeg color r=0.77, g=0.49, b=0.25
camera color r=0.40, g=0.36, b=0.11
RESULTS
White area: 13
Errors:
Zone 1: 7.0%
Zone 2: 9.2%
Zone 3: 9.4%
Zone 4: 9.5%
Zone 5: 8.6%
Zone 6: 7.4%
Zone 7: 5.5%
Zone 8: 2.9%
Zone 9: 8.8%
Zone 10: 9.1%
Zone 11: 2.2%
Zone 12: 3.6%
Zone 13: 5.7%
Zone 14: 9.4%
Zone 15: 9.5%
Zone 16: 3.2%
Zone 17: 6.2%
Zone 18: 7.6%
Zone 19: 3.5%
Zone 20: 8.5%
Camera -> XYZ matrix:
0.983613 0.279535 0.814647
0.154812 1.559721 -0.447597
-0.195736 -0.653666 5.720120
XYZ -> Camera matrix:
1.023507 -0.252814 -0.165548
-0.094643 0.686256 0.067178
0.024208 0.069771 0.176833
20 zones are good enough?? I think I've just perfected the matrix for the 590IS rev 1.01B.
First of all the noise on the CCD makes this calibration really HARD. It took two hours to get 20 zones out of my crappy test image. Secondly I highly recommend anyone attempting this get a test target and shoot that in really bright light. Underexposure leads to noise which makes everything all the more difficult.
Test files are at:
http://rapidshare.com/files/214496507/test.zip.htmlSorry they are kind of crappy. I didn't realize how dirty that target was until I looked at the files at home.