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Pra_Vmaf_Plotting

Simple script for vmaf plotting. Initial code from https://github.com/master-of-zen/Plot_Vmaf To be used with https://github.com/gdavila/easyVmaf

Usage

python plot_vmaf.py [-h] [-o OUTPUT] [-p] vmaf_file1 vmaf_file2 ..... vmaf_fileX 

Example

python plot_vmaf.py vmaf.json -o plot.svg

Options

-o --output ["file"] name and format of the temporal VMAF graph (default plot.png)
-p  generate percentile graph 

Requirements

Python 3 Matplotlib Numpy

References

About Harmonic Mean

According Zhi Li (https://netflixtechblog.com/vmaf-the-journey-continues-44b51ee9ed12) and Jan Ozer (https://streaminglearningcenter.com/blogs/compute-vmaf-using-ffmpeg-on-windows.html) , harmonic mean makes more sense than arithmetic mean.

About percentile

https://blog.twitter.com/engineering/en_us/topics/infrastructure/2020/introducing-vmaf-percentiles-for-video-quality-measurements