10 Color Correction: PWB-C
Reflection/Density Conversion
• Color reproduction faithful to the original is not possible if the original reflection data (R,
G, B) obtained through the CCD Sensor is converted to the complementary color data
for developing.
Example: White
Reflection
Factor
R
• The R, G, and B data are therefore input to the LOG table shown below to convert to the
density data (DR, DG, and DB).
Example : White
Reflection
Factor
R
G
B
255
G
B
0
255
225
LOG Table
DR
DG
DB
0
0
RGB
M-29
Becoming Black
255
C
M
0
1144M178CA
255
DR
DG
DB
0
225
Y
Becoming White
255
C
M
Y
0
1144M179CA