Below you will find pages that utilize the taxonomy term “keyframes”
February 21, 2020
Creating image masks from video file
As part of my exploration in creating multi-exposure keyframe image displays with FFmpeg and ImageMagick, I tried out a number of things that did not help solve the initial problem but still could be interesting for other things. Most interesting was the automagic creation of image masks from a video file.
I will use a contemporary dance video from the AIST Dance Video Database as an example:
The first step is to extract keyframes from the video file using this one-liner ffmpeg command:
February 21, 2020
Creating multi-exposure keyframe image displays with FFmpeg and ImageMagick
While I was testing visualization of some videos from the AIST database earlier today, I wanted to also create some “keyframe image displays”. This can be seen as a way of doing multi-exposure photography, and should be quite straightforward to do. Still it took me quite some time to figure out exactly how to implement it. It may be that I was searching for the wrong things, but in case anyone else is looking for the same, here is a quick write up.