Universal no-reference image quality evaluation method based on phase selection mechanism
A technology of reference image and quality evaluation, applied in the direction of image communication, television, electrical components, etc., can solve the problem of inability to obtain the original image, and achieve the effect of improving the correlation
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] A general non-reference image quality evaluation method based on the phase selectivity mechanism proposed by the present invention, its overall realization block diagram is as follows figure 1 As shown, the processing process is as follows: First, implement Log-Gabor filtering on the distorted image to be evaluated to obtain a multi-scale and multi-directional phase image; Values are compared to obtain the local feature map; then the rotation invariance method is used to obtain the local feature pattern map of the local feature map, and the histogram statistical method is used to perform statistics on the local feature pattern map to obtain the histogram statistical feature vector of the distorted image to be evaluated ; Finally, according to the distance between the histogram statistical feature vector of the distorted image to be ev...
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