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Image quality measures and their performance

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2 Author(s)
Eskicioglu, A.M. ; Dept. of Comput. Sci., North Texas Univ., Denton, TX, USA ; Fisher, P.S.

A number of quality measures are evaluated for gray scale image compression. They are all bivariate, exploiting the differences between corresponding pixels in the original and degraded images. It is shown that although some numerical measures correlate well with the observers' response for a given compression technique, they are not reliable for an evaluation across different techniques. A graphical measure called Hosaka plots, however, can be used to appropriately specify not only the amount, but also the type of degradation in reconstructed images

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Communications, IEEE Transactions on  (Volume:43 ,  Issue: 12 )