Question 1

What is SSIM?

Accepted Answer

SSIM (Structural Similarity Index) is a metric that measures the similarity between two images based on luminance, contrast, and structure. Values range from 0 to 1, where 1 means the images are identical.

Question 2

How do I calculate SSIM online?

Accepted Answer

Upload two images to DualView and press Shift+M to enable quality metrics. The SSIM value will be displayed in the overlay, along with PSNR. You can also visually compare the images.

Question 3

What is a good SSIM score?

Accepted Answer

SSIM above 0.95 indicates very similar images. 0.90-0.95 shows minor differences. Below 0.90 indicates noticeable changes. A score of 1.0 means the images are pixel-identical.

SSIM Calculator Online

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