ffmpeg feature request: new cropdetect based on motionlessness
|Reported by:||pat284e||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
The filter "cropdetect" is helpful to crop off black rectangular rim or black outer belt. However, I need to crop off a motionless pictorial belt that surrounds a motionful video content. A motionless pictorial belt that surrounds a motionful video content may be thought of as a big still picture into which a small video is overlaid. (Note that the size and location of the small video inside the big picture is steady and immutable.)
So, I need a new different kind of "cropdetect" that works based on motionlessness but not on blackness.
I will try to attach or upload an example video. Here is the code that composed the sample video.
What I need is to extract the small video by removing the surrounding motionless pictorial belt. I need some automatic detection of appropriate parameters for the crop, when I do not know the parameters or when it is difficult for me to find the parameters.
Key words: "motionless pictorial belt", "pictorial outer frame", "pictorial outer rim", "motion-based cropdetect", "motionlessness-based cropdetect"
Change History (3)
comment:1 by , 8 years ago
|Component:||undetermined → avfilter|
|Keywords:||cropdetect added; "motionless pictorial belt" "pictorial outer frame" "pictorial outer rim" "motion-based cropdetect" "motionlessness-based cropdetect" removed|
|Priority:||normal → wish|
|Version:||2.7 → git-master|