diff options
| -rw-r--r-- | doc/HISTORY | 6 | ||||
| -rw-r--r-- | lib/ppm.h | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/doc/HISTORY b/doc/HISTORY index c8b3db60..f2858ca5 100644 --- a/doc/HISTORY +++ b/doc/HISTORY @@ -10,6 +10,12 @@ not yet BJH Release 10.50.00 pnmconvol: Add -normalize . + libnetpbm: Add PNM_GETR(), PNM_GETG(), PNM_GETB(). Same + as PPM_GETR(), etc. + + libnetpbm: Add ppm_luminosity(). Same as PPM_LUMIN, but + returns pixval. + pnmhisteq: slight speedup. Thanks Thomas Baruchel. libppmd/ppmpat: fix wild pointer in ppmd_fill_drawprocp(); diff --git a/lib/ppm.h b/lib/ppm.h index 0695295f..57b6c04a 100644 --- a/lib/ppm.h +++ b/lib/ppm.h @@ -250,6 +250,12 @@ ppm_hsv_from_color(pixel const color, pixval const maxval); static __inline pixval +ppm_luminosity(pixel const p) { + + return (pixval)(PPM_LUMIN(p) + 0.5); +} + +static __inline pixval ppm_colorvalue(pixel const p) { /*---------------------------------------------------------------------------- The color value (V is HSV) as a pixval |