Hello, Your comparison used CRF encoding and the results showed decreased bitrate as well as decreased PSNR. This is not sufficient to make a case for improved compression efficiency. The thorough metric to use to judge this would be BD-SSIM/BD-PSNR. You could also use --bitrate encoding, ensuring similar bitrates for a less accurate comparison. A couple more points
a) SSIM is a more preferred metric with this team, since it correlates better to visual quality b) For selected sequences, visually comparing the 2 encodes would also be very useful. On Thu, Jul 28, 2016 at 9:30 PM, N Vijay Anand < [email protected]> wrote: > Min, others, > > Can we do comparison this way: > > 1. Generate bitstream with x265.exe at data rates (achieved with the > patch). > Compare the psnr's in this scenario. > 2. Generate bitstream with patch at data rates (that's reported by > x265.exe) > and compare psnr's. > > Im sure there's an ineresting case here. > > Vijay > -- > Principal Architect and Director, > TriSpace Technologies Pvt Ltd., > > > > _______________________________________________ > x265-devel mailing list > [email protected] > https://mailman.videolan.org/listinfo/x265-devel > > -- Deepthi
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