Pnmcomp User Manual(0) Pnmcomp User Manual(0)NAMEpnmcomp - composite (overlay) two PNM images together
SYNOPSISpnmcomp
[-align={left|center|right| beyondleft|beyondright}] [-valign={top|mid‐
dle|bottom| above|below}] [-xoff=X] [-yoff=Y] [-alpha=alpha-pgmfile]
[-invert] [-opacity=opacity] overlay_file [underlying_file [out‐
put_file]]
Minimum unique abbreviation of option is acceptable. You may use dou‐
ble hyphens instead of single hyphen to denote options. You may use
white space in place of the equals sign to separate an option name from
its value.
DESCRIPTION
This program is part of Netpbm(1).
pnmcomp was obsoleted by pamcomp(1),introducedwithNetpbm10.21 (March
2004). pamcomp is backward compatible with pnmcomp, plus adds many
additional functions, including the ability to process PAM images, and
tends to produce better transparency results.
pnmcomp remains in the Netpbm package because it probably has fewer
bugs for now than pamcomp, and is faster. Some day, pnmcomp will prob‐
ably become an alias for pamcomp.
You can use the pamcomp documentation for pnmcomp, considering the fol‐
lowing differences:
· pnmcomp options are a subset of pamscale's, as
documented above.
· pnmcomp always assumes the input is linear, as pamcomp
does when you specify its -linear option.
· pnmcomp cannot process PAM images.
netpbm documentation 15 February 2004 Pnmcomp User Manual(0)