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Image quality assessment: Difference between revisions
→Standard Images and Video
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**where R^2 is the maximum fluctuation (e.g. 1.0 for [0-1] float images, 255 for uint8). | **where R^2 is the maximum fluctuation (e.g. 1.0 for [0-1] float images, 255 for uint8). | ||
* SSIM | * SSIM | ||
For video, simply average MSE or PSNR over all frames. | |||
Typically, for a yuv420 video, people only calculate MSE or PSNR for the luminance (Y) channel due to chroma subsampling. | |||
[[FFmpeg]] can compute PSNR and SSIM. | |||
==Foveated Quality Assessment== | ==Foveated Quality Assessment== | ||