Цитата Polishchuk:
SSIM Mean Y:0.9508145
это хорошо эли плохо? »
|
оригинал принимается за 1, чем ближе к единице тем меньше потерь качества.
на выходных делал фильм вот что получилось:
--[NoImage] Standard error stream
---[NoImage] avis [info]: 720x304 @ 25.00 fps (5703 frames)
---[NoImage] x264 [info]: using SAR=1/1
---[NoImage] x264 [info]: using cpu capabilities: MMX MMX2 SSE SSE2 SSE3 Cache64
---[NoImage] x264 [info]: slice I:83 Avg QP:20.00 size: 18169 PSNR Mean Y:46.54 U:51.30 V:51.67 Avg:47.60 Global:46.84
---[NoImage] x264 [info]: slice P:3534 Avg QP:22.22 size: 7332 PSNR Mean Y:44.61 U:50.53 V:50.44 Avg:45.73 Global:44.30
---[NoImage] x264 [info]: slice B:2086 Avg QP:23.45 size: 3257 PSNR Mean Y:43.36 U:49.66 V:49.53 Avg:44.53 Global:43.48
---[NoImage] x264 [info]: mb I I16..4: 20.4% 40.9% 38.7%
---[NoImage] x264 [info]: mb P I16..4: 16.8% 21.8% 5.5% P16..4: 30.2% 13.8% 4.6% 1.0% 0.6% skip: 5.7%
---[NoImage] x264 [info]: mb B I16..4: 2.3% 2.5% 0.4% B16..8: 64.0% 2.0% 1.7% direct:15.5% skip:11.5%
---[NoImage] x264 [info]: 8x8 transform intra:49.0% inter:43.7%
---[NoImage] x264 [info]: SSIM Mean Y:0.9791534
---[NoImage] x264 [info]: PSNR Mean Y:44.185 U:50.220 V:50.127 Avg:45.319 Global:44.007 kb/s:1199.85
---[NoImage] encoded 5703 frames, 9.09 fps, 1200.17 kb/s
Только мне не понятно с psnr, какое значение принимает оригинал?
