diff options
Diffstat (limited to 'lib/libpnm3.c')
| -rw-r--r-- | lib/libpnm3.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/libpnm3.c b/lib/libpnm3.c index 3970c734..ba408bd1 100644 --- a/lib/libpnm3.c +++ b/lib/libpnm3.c @@ -106,10 +106,14 @@ pnm_backgroundxelrow(xel * const xelrow, int const cols, xelval const maxval, int const format) { +/*---------------------------------------------------------------------------- + Guess a good background color for an image that contains row 'xelrow' + (probably top or bottom edge). + 'cols', 'maxval', and 'format' describe 'xelrow'. +-----------------------------------------------------------------------------*/ xel bgxel, l, r; - /* Guess a good background value. */ l = xelrow[0]; r = xelrow[cols-1]; |