how to calculate s-psnr
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CodingHang commented
how to use the file(sphere_655362.txt)?
why the number of point is 655362?
vladZakharchenko commented
Hi, lonelylonelylonely.
You can use spherical coordinates file with -s key in metrics binary file.
File sphere_655362.txt contains long/lat coordinates of the "evenly distributed" points on the sphere surface.
The nuber of points is following Original paper - "A Framework to Evaluate Omnidirectional Video Coding Schemes" by Matt Yu, Haricharan Lakshman and Bernd Girod