The package also supports being installed as a tool with uv:

uv tool install movie_colorbar

uv tool install movie_colorbar[fast]

Detailed usage goes as follows:

 Usage: python -m movie_colorbar [OPTIONS] INPUT OUTPUT

 Command line tool to create colorbars from videos.
 From the input video individual frames are extracted with ffmpeg and written to disk in a directory placed next to the final output
 and named after the video. Each frame is reduced to a single color according to the chosen method. Finally a colorbar is created
 from these determined colors, and written to disk as an image file at the provided output location. By default the extracted frames
 are removed after processing, but they can be kept if desired (see the 'cleanup' option).
 Should the input be a directory, then every video file contained within will be processed, provided it is supported by ffmpeg. In
 this case the output should also be a directory, in which one colorbar will be created for each video file.

╭─ Arguments ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ *    input       PATH  Path to the input video file or directory. [required]                                                      │
│ *    output      PATH  Path to the output colorbar image or directory. [required]                                                 │
╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Options ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --method                                [common|hsv|hue|kmeans|lab|quantized|resize  Method used to calculate the color for each  │
│                                         |rgb|rgbsquared|xyz]                         frame.                                       │
│                                                                                      [default: rgb]                               │
│ --fps                                   INTEGER RANGE [x>=0]                         Number of frames to extract per second of    │
│                                                                                      video footage.                               │
│                                                                                      [default: 10]                                │
│ --cleanup               --no-cleanup                                                 Whether to remove the extracted frames after │
│                                                                                      processing.                                  │
│                                                                                      [default: cleanup]                           │
│ --log-level                             [trace|debug|info|warning|error|critical]    The base console logging level.              │
│                                                                                      [default: info]                              │
│ --install-completion                                                                 Install completion for the current shell.    │
│ --show-completion                                                                    Show completion for the current shell, to    │
│                                                                                      copy it or customize the installation.       │
│ --help                                                                               Show this message and exit.                  │
╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

One can call the tool via the package name with uvx:

uvx movie_colorbar [OPTIONS] INPUT OUTPUT

It is also possible to use the colorbar command alias by specifying the tool to source from:

uvx --from movie_colorbar colorbar [OPTIONS] INPUT OUTPUT

The following command was used to generate all the colorbars:

for method in common hsv hue kmeans lab quantized resize rgb rgbsquared xyz; do python -m movie_colorbar ~/Desktop/STARWARS_9_TRAILER.mkv bars/sw9_trailer/SW9_trailer_$method.png --method $method --fps 25; done