Epson GT-30000 - Manual (Page 14)

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4. Give the file a descriptive name with a PXG extension, such as mygamma.pxg and save the file in the
\WINDOWS\PIXTRAN directory.
5. For a color gamma table, create three gamma files, one for red, one for green, and one for blue. Each of
these files specifies a gamma mapping for one color.
Examples
The following PXG file contains a gamma table which inverts images. The first line is the description, the
second line (256) is the count of gamma values and lines 3-258 contain the gamma values 255-0.
Inverted linear gamma
256
255
254
253
.
.
.
1
0
The following PXG file contains a gamma table which sets a normal linear gamma curve. The first line is
the description, the second line (256) is the count of gamma values and lines 3-258 contains the gamma
values 0-255.
Linear gamma curve
256
0
1
2
.
.
.
254
255