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From: rg@msel.unh.edu (Roger Gonzalez)
Newsgroups: comp.graphics,comp.compression
Subject: gif encoding questions
Message-ID: <1991Apr9.142255.186@unhd.unh.edu>
Date: 9 Apr 91 14:22:55 GMT
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Let c = (2**bitsize) - 1

When encoding in GIF format, do you increase the bitsize when you
_output_ code c, or when you _add_ an entry to the c-th entry in the 
string table?

What about when c = 4095?  Do you output the clear code and reinitialize
after 4095 is output, or after the 4095th entry in the table is used?

Why have I seen gray scale (256) GIFs that don't have simple color maps like
00 00 00 01 01 01 02 02 02 03 03 03 ... FE FE FE FF FF FF

Some of them are really strange...


-Roger
-- 
"The question of whether a computer can think is no more interesting
 than the question of whether a submarine can swim" - Edsgar W. Dijkstra 
rg@[msel|unhd].unh.edu        |  UNH Marine Systems Engineering Laboratory
r_gonzalez@unhh.bitnet        |  Durham, NH  03824-3525


-- 
"The question of whether a computer can think is no more interesting
 than the question of whether a submarine can swim" - Edsgar W. Dijkstra 
rg@[msel|unhd].unh.edu        |  UNH Marine Systems Engineering Laboratory
r_gonzalez@unhh.bitnet        |  Durham, NH  03824-3525