Appendix A: About Printer Tables

A-2 March 1998
Standard Tables
Each printer table is named according to its correction
formula. There are 45 standard RGB tables. The
standard printer tables consist of combinations from one
of the available gamma correction values (1.0, 1.2, 1.4,
1.6, 1.8, 2.0, 2.2, 2.5, 2.8) and one of the available black
level values (-40, -30, -20, -10, 0). For example, the
printer table SG16BN30 has a gamma correction value of
1.6 and a black level value of -30.
The standard tables are all set for a hue shift of 0°, a
saturation level of 100%, and an automatic contrast
calculation.
The default table for the export module is gamma 2.0,
black level -20. Choosing a black le v el of -10 or 0 lightens
a print and helps to bring out details in and shadow
areas. A black level of -30 or -40 darkens a print.
Custom RGB Windows Tables
Four custom tables are included with the Windows
version of the export module.
SLINEAR.TBL—does not modify the digital color data it
receives from the application. It outputs the same values
it receives, which allows you to use calibrated digital color
data directly from a color calibration program.
SYELLOW.TBL—includes a color matrix that modifies
the yellow digital image data it receives. These modified
values produce a lighter shade of yellow, which is better
suited for graphic arts applications.
SPHOTOCD.TBL—obtains maximum image quality from
Photo CD images that were opened using the RGB video
metric.
SDEFAULT.TBL—uses the same correction values as
the XLS Default selection and the SG20BN20.TBL printer
table.