diff options
| author | Xuewei Meng <xwmeng96@gmail.com> | 2021-06-14 10:08:01 +0800 |
|---|---|---|
| committer | Steven Liu <liuqi05@kuaishou.com> | 2021-06-29 16:05:31 +0800 |
| commit | 9ca88b3befef5608dd2a58d08f3aabcd0b475f95 (patch) | |
| tree | ff2ded849beac9dec4a959246c8600e46d196150 /doc | |
| parent | 49e3a8165c940b0e4b6c39b2e316065c56084fea (diff) | |
avfilter/vf_guided: support single input
Support single input for guided filter by adding guidance mode.
If the guidance mode is off, single input is required. And
edge-preserving smoothing is conducted. If the mode is on, two
inputs are needed. The second input serves as the guidance. For
this mode, more tasks are supported, such as detail enhancement,
dehazing and so on.
Signed-off-by: Xuewei Meng <xwmeng96@gmail.com>
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index bbd0a3d14d..67ad228d8b 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -12995,8 +12995,6 @@ greyedge=difford=1:minknorm=0:sigma=2 @section guided Apply guided filter for edge-preserving smoothing, dehazing and so on. -This filter requires two inputs of same resolution and pixel format. -The second input serves as the reference. The filter accepts the following options: @table @option @@ -13017,6 +13015,12 @@ Set subsampling ratio for @code{fast} mode. Range is 2 to 64. Default is 4. No subsampling occurs in @code{basic} mode. +@item guidance +Set guidance mode. Can be @code{off} or @code{on}. Default is @code{off}. +If @code{off}, single input is required. +If @code{on}, two inputs of the same resolution and pixel format are required. +The second input serves as the guidance. + @item planes Set planes to filter. Default is first only. @end table @@ -13029,7 +13033,7 @@ This filter supports the all above options as @ref{commands}. @item Edge-preserving smoothing with guided filter: @example -ffmpeg -i in.png -i in.png -filter_complex guided out.png +ffmpeg -i in.png -vf guided out.png @end example @item @@ -13037,7 +13041,7 @@ Dehazing, structure-transferring filtering, detail enhancement with guided filte For the generation of guidance image, refer to paper "Guided Image Filtering". See: @url{http://kaiminghe.com/publications/pami12guidedfilter.pdf}. @example -ffmpeg -i in.png -i guidance.png -filter_complex guided out.png +ffmpeg -i in.png -i guidance.png -filter_complex guided=guidance=on out.png @end example @end itemize |