krishnan@sunybcs.UUCP (Ganapathy Krishnan) (02/14/86)
Is there a good survey article on configuring lookup tables? We have
an Adage with a 16 bit frame buffer.
Let me explain the problem:
The Adage can be expanded to full color mode i.e. with 24 bits of color.
Just before the lookup tables, is a luvo switch which can be configured in
one of two modes: full-color or pseudo-color. In full color the leftmost
8 bits is sent to the B lookup table, the middle 8 bits to the G lookup table
and the rightmost 8 bits to the R lookup table.
In pseudo color, 8 bits can be sent to R G and B tables simultaneously.
I have been using the Adage mostly in this mode.
Hence, with sixteen bits, one way to code the image is to have 7 bits of
intensity and 9 bits of hue. How does one generate lookup tables for this?
Any ideas and suggestions will be gratefully acknowledged.
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