In the process of image blind restoration

the estimation of the fuzzy kernel usually produces errors which lead to image ringing The existing algorithm cannot effectively evaluate the severity of ringing To solve this problem

a method for evaluating the ringing effect is proposed From the physical mechanism of image ringing effect caused by blind restoration of image

the causes of the ringing effect caused by blind restoration of images and the influence on image quality are analyzed By extracting the overshoot and ripple regions of the ringing image and weighting the gradient values of the region

the severity of the ringing effect is quantified The experimental results show that when the fuzzy kernel parameter value exceeds 3

the algorithm shows a monotonically increasing state with increasing parameters

The change in SSIM evaluation results tends to be zero This algorithm can effectively evaluate different restoration algorithms and different restoration parameters Restore the ringing effect in the image under different restoration parameters