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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-28 11:26:10 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-01-30 19:55:36 +0100 |
| commit | d4b05f31d895a4ed13e969348265e5031de1dfdb (patch) | |
| tree | 6a1f15c708242561bc15ef5d09327feb4158a40b /doc | |
| parent | 48b694782186f011b6f5f1e3568552dcfd102bb2 (diff) | |
doc/filters: Document geq *sum functions
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 95f31b9592..13403fd96c 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -11452,6 +11452,10 @@ red/green/blue component. Return 0 if there is no such component. Return the value of the pixel at location (@var{x},@var{y}) of the alpha plane. Return 0 if there is no such plane. +@item psum(x,y), lumsum(x, y), cbsum(x,y), crsum(x,y), rsum(x,y), gsum(x,y), bsum(x,y), alphasum(x,y) +Sum of sample values in the rectangle from (0,0) to (x,y), this allows obtaining +sums of samples within a rectangle. See the functions without the sum postfix. + @item interpolation Set one of interpolation methods: @table @option |