diff options
Diffstat (limited to 'lib/pgm.h')
| -rw-r--r-- | lib/pgm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/pgm.h b/lib/pgm.h index 81e86cfb..d4655239 100644 --- a/lib/pgm.h +++ b/lib/pgm.h @@ -42,6 +42,8 @@ typedef unsigned int gray; #define PGM_OVERALLMAXVAL 65535 #define PGM_MAXMAXVAL 255 +#define pgm_unnormalize(value, maxval) \ + ((gray)((value + 1e-6) * (maxval) + 0.5)) /* Magic constants. */ |