Hello, As I had some questions on where do my speed numbers come from, here are some speed timings compared with x265 (very optmized HEVC) and Google WebP, on my computer: Windows 10 64bit - Intel i5-6400 2.73Ghz 4C/8T, for a 512x512 .bmp/ppm 24bit color image:
Encode time: x265: 310ms WebP: 70ms NHW: 30ms Decode time: x265: 30ms WebP: 40ms NHW: 10ms But the NHW Project is totally unoptimized whereas x265 and WebP are extremely optimized (multithreading, SIMD,...) and so with a good optimization (x4-5), the NHW Project is 310/30x5=51.67x faster to encode and 30/10x5=15x faster to decode than x265, and 70/30x5=11.67x faster to encode and 40/10x5=20x faster to decode than WebP. Also, I claim that the NHW Project has more neatness (subjective quality), and now I have developped a NHW Neatness Metrics (that you can downlaod on my demo page) that is based on a neatness/perceived quality model, and that gives objective measurements and that objectively shows that the NHW Project has more neatness. To finish, I would be also very interested in your opinion if you have time on the new -l12 very high compression quality setting that I find very competitive! More at: http://nhwcodec.blogspot.com/ Many thanks! Best regards, Raphael Canut
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