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pnmarith.1
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1995-07-25
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2KB
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67 lines
ppppnnnnmmmmaaaarrrriiiitttthhhh((((1111)))) XXXXEEEENNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((11113333 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999991111)))) ppppnnnnmmmmaaaarrrriiiitttthhhh((((1111))))
NNNNAAAAMMMMEEEE
pnmarith - perform arithmetic on two portable anymaps
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
ppppnnnnmmmmaaaarrrriiiitttthhhh ----aaaadddddddd|----ssssuuuubbbbttttrrrraaaacccctttt|----mmmmuuuullllttttiiiippppllllyyyy _p_n_m_f_i_l_e_1 _p_n_m_f_i_l_e_2
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
Reads two portable anymaps as input. Performs the specified
arithmetic operation, and produces a portable anymap as
output. The two input anymaps must be the same width and
height.
The arithmetic is performed between corresponding pixels in
the two anymaps, as if maxval was 1.0, black was 0.0, and a
linear scale in between. Results that fall outside of
[0..1) are truncated.
All flags can be abbreviated to their shortest unique
prefix.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
pbmmask(1), pnmpaste(1), pnminvert(1), pnm(5)
AAAAUUUUTTTTHHHHOOOORRRR
Copyright (C) 1989, 1991 by Jef Poskanzer.
Page 1 (printed 9/7/93)