> 2020年3月23日 下午12:08，Guo, Yejun <yejun....@intel.com> 写道： > > currently, the model outputs the rain, and so need a subtraction > in filter c code to get the final derain result. > > I've sent a PR to update the model file and accepted, see at > https://github.com/XueweiMeng/derain_filter/pull/3 > > Signed-off-by: Guo, Yejun <yejun....@intel.com> > --- > doc/filters.texi | 7 +++++-- > libavfilter/vf_derain.c | 6 +----- > 2 files changed, 6 insertions(+), 7 deletions(-) > > diff --git a/doc/filters.texi b/doc/filters.texi > index 328e984..3dc7715 100644 > --- a/doc/filters.texi > +++ b/doc/filters.texi > @@ -8878,6 +8878,7 @@ delogo=x=0:y=0:w=100:h=77:band=10 > > @end itemize > > +@anchor{derain} > @section derain > > Remove the rain in the input image/video by applying the derain methods based > on > @@ -8932,6 +8933,8 @@ Note that different backends use different file > formats. TensorFlow and native > backend can load files for only its format. > @end table > > +It can also be finished with @ref{dnn_processing} filter. > + > @section deshake > > Attempt to fix small changes in horizontal and/or vertical shift. This > @@ -9201,9 +9204,9 @@ Set the output name of the dnn network. > > @itemize > @item > -Halve the red channle of the frame with format rgb24: > +Remove rain in rgb24 frame with can.pb (see @ref{derain} filter): > @example > -ffmpeg -i input.jpg -vf > format=rgb24,dnn_processing=model=halve_first_channel.model:input=dnn_in:output=dnn_out:dnn_backend=native > out.native.png > +./ffmpeg -i rain.jpg -vf > format=rgb24,dnn_processing=dnn_backend=tensorflow:model=can.pb:input=x:output=y > derain.jpg > @end example > > @item > diff --git a/libavfilter/vf_derain.c b/libavfilter/vf_derain.c > index 89f9d5a..7432260 100644 > --- a/libavfilter/vf_derain.c > +++ b/libavfilter/vf_derain.c > @@ -100,7 +100,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) > AVFilterLink *outlink = ctx->outputs[0]; > DRContext *dr_context = ctx->priv; > DNNReturnType dnn_result; > - int pad_size; > > AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h); > if (!out) { > @@ -129,15 +128,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame > *in) > out->width = dr_context->output.width; > outlink->h = dr_context->output.height; > outlink->w = dr_context->output.width; > - pad_size = (in->height - out->height) >> 1; > > for (int i = 0; i < out->height; i++){ > for(int j = 0; j < out->width * 3; j++){ > int k = i * out->linesize[0] + j; > int t = i * out->width * 3 + j; > - > - int t_in = (i + pad_size) * in->width * 3 + j + pad_size * 3; > - out->data[0][k] = CLIP((int)((((float > *)dr_context->input.data)[t_in] - ((float *)dr_context->output.data)[t]) * > 255), 0, 255); > + out->data[0][k] = CLIP((int)((((float > *)dr_context->output.data)[t]) * 255), 0, 255); > } > } > > -- > 2.7.4 > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
LGTM Thanks Steven Liu _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
