full-reference image metric
(images are different) -1..1 (images are same)
bigger is better quality
CPU multithreaded
(default),
OpenCL
(recommended),
CUDA
Y, U, V
metric value
standard set
-metr 3ssim [over <color components>]
-metr 3ssim_cuda [over <color components>]
-metr 3ssim [over <color components>] -dev <OpenCL device>
3-SSIM
3-Component SSIM Index based on region division of source frames. There are 3 types of regions – edges, textures and smooth regions. Result metric calculated as weighted average of SSIM metric for those regions. In fact, human eye can see difference more precisely on textured or edge regions than on smooth regions. Division based on gradient magnitude is presented in every pixel of images.
Implementation | System & settings | Colors | Resolution | FPS | Sec. per frame |
---|---|---|---|---|---|
VQMT 14.0 default | multithreaded | Y | HD 720p | 54.74 | 0.02 |
VQMT 14.0 default | multithreaded | Y | FullHD 1080p | 24.39 | 0.045 |
VQMT 14.0 default | multithreaded | Y | 4K 2160p | 5.83 | 0.209 |
VQMT 14.0 default | singlethreaded | Y | HD 720p | 29.26 | 0.036 |
VQMT 14.0 default | singlethreaded | Y | FullHD 1080p | 12.99 | 0.081 |
VQMT 14.0 default | singlethreaded | Y | 4K 2160p | 3.29 | 0.328 |
Implementation | System & settings | Colors | Resolution | FPS | Sec. per frame |
---|---|---|---|---|---|
VQMT 13.1 default | multithreaded | Y | HD 720p | 54.9 | 0.019 |
VQMT 13.1 default | multithreaded | Y | FullHD 1080p | 24.34 | 0.044 |
VQMT 13.1 default | multithreaded | Y | 4K 2160p | 5.84 | 0.206 |
VQMT 13.1 default | singlethreaded | Y | HD 720p | 29.5 | 0.035 |
VQMT 13.1 default | singlethreaded | Y | FullHD 1080p | 12.94 | 0.08 |
VQMT 13.1 default | singlethreaded | Y | 4K 2160p | 3.28 | 0.325 |
Implementation | System & settings | Colors | Resolution | FPS | Sec. per frame |
---|---|---|---|---|---|
VQMT 14.0 default | multithreaded | Y | HD 720p | 309.37 | 0.005 |
VQMT 14.0 default | multithreaded | Y | FullHD 1080p | 114.47 | 0.013 |
VQMT 14.0 default | multithreaded | Y | 4K 2160p | 28.56 | 0.086 |
VQMT 14.0 default | singlethreaded | Y | HD 720p | 24.26 | 0.042 |
VQMT 14.0 default | singlethreaded | Y | FullHD 1080p | 11.52 | 0.088 |
VQMT 14.0 default | singlethreaded | Y | 4K 2160p | 3.32 | 0.31 |
In VQMT 14 implemented SSIM Superfast. Also MS-SSIM can be applied to three components simulteneously.