diff options
Diffstat (limited to 'lib/ppm.h')
-rw-r--r-- | lib/ppm.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/ppm.h b/lib/ppm.h index b4350e1d..622d3e09 100644 --- a/lib/ppm.h +++ b/lib/ppm.h @@ -259,7 +259,10 @@ ppm_saturation(pixel const p, typedef enum { /* A color from the set of universally understood colors developed - by Brent Berlin and Paul Kay + by Brent Berlin and Paul Kay. + + Algorithms in libnetpbm depend on the numerical representations + of these values being as follows. */ BKCOLOR_GRAY = 0, BKCOLOR_BROWN, |