Questions tagged [ssim]

For questions about the Structural SIMilarity (SSIM) metric (in the context of artificial intelligence). See the paper "Image Quality Assessment: From Error Visibility to Structural Similarity" (2004) by Zhou Wang et al. for more info.

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To assess the quality of the reconstructed images, which metric is more reliable: PSNR or LPIPS?

I am training a model for image reconstruction. I used several metrics to assess the quality of the reconstructed images. LPIPS is decreasing, which is good. PSNR goes up and down, but the L1 loss and SSIM loss are increasing. So, which metric…
Yousef
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Do we need to know or verify properties of loss functions / metrics' implementations?

I will start with an example, in order to get to the general question. I was reading the following paper (https://www.cns.nyu.edu/pub/lcv/wang03-preprint.pdf) about Structural Similarity Index (SSIM), which is a function used in computer vision.…
Theo Deep
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Which mathematical properties do PSNR and MSE hold?

We know the Structural Similarity Index (SSIM) holds the following properties: Unique maximum: S(x, y) = 1 if and only if x = y Boundedness: S(x, y) ≤ 1 Symmetry: S(x, y) = S(y, x) My question is: do we know simple some properties like these…