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This paper analyses the application of no-reference metric NIQE to the taskof video-codec comparison. A number of issues in the metric behaviour on videoswas detected and described. The metric has outlying scores on black andsolid-coloured frames. The proposed averaging technique for metric qualityscores helped to improve the results in some cases. Also, NIQE has low-qualityscores for videos with detailed textures and higher scores for videos of lowerbitrates due to the blurring of these textures after compression. Although NIQEshowed natural results for many tested videos, it is not universal andcurrently can not be used for video-codec comparisons.

Barriers towards no-reference metrics application to compressed video quality analysis: on the example of no-reference metric NIQE