6 lines
371 B
Plaintext
6 lines
371 B
Plaintext
pnmcurve applies tone curves to pnm images. Curves are specified as a set of
|
|
control points of a cubic spline. pnmcurve applies the resulting spline curve to
|
|
the pnm image read from stdin and writes the resulting image to stdout. Command
|
|
line switches allow to apply the curve only to selected color channels. By
|
|
default pnmcurve applies the curve to all color channels.
|