Extract desired number of frames from a video based on optical flow

python annolid/main.py -v /path/to/my_video.mp4 --extract_frames=100

The above command will extract 100 frames from the provided video and save them to a default folder called extracted_frames in the current annolid repo folder.

Or you can use the GUI as follows.

Display optical flow while extracting frames with –show_flow=True

python annolid/main.py -v /path/to/my_video.mp4 --extract_frames=100 --show_flow=True

Save all the frames as images

python annolid/main.py  -v /path/to/my_video.mp4 --extract_frames=-1

Select frames randomly by reservoir sampling

python annolid/main.py  -v /path/to/my_video.mp4 --extract_frames=100 --algo=random

Extract all the key frames from a video used by the compression methods

:warning: This method may not work for some videos with certain compression methods.

python main.py -v /path/to/my_video.mp4 --algo=keyframes --extract_frames=-1