Install latest/stable of DSSIM
Ubuntu 16.04 or later?
Make sure snap support is enabled in your Desktop store.
This tool computes (dis)similarity between two or more PNG images using an algorithm approximating human vision. Comparison is done using a variant of the SSIM algorithm at multiple weighed resolutions. The value returned is 1/SSIM-1, where 0 means identical image, and >0 (unbounded) is amount of difference.
Values are not directly comparable with other tools, but DSSIM is generally more accurate (according to TID2013 test suite).
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Choose your Linux distribution to get detailed installation instructions. If yours is not shown, get more details on the installing snapd documentation.
