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| -rw-r--r-- | README | 14 |
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@@ -0,0 +1,14 @@ +======== +pnmcurve +======== + +apply 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. +The -rgb command line switches allow to apply the curve only to +selected color channels. + +pnmcurve is intended to be used with the flimp +(http:www.ecademix.com/JohannesHofmann/flimp.html), but can also be +used as a standalone filter. |