Comparison of Image Quality Assessment: PSNR, HVS, SSIM, UIQI 论文

摘要

HE quality of the image degrades from the minute it is captured to the time it is displayed to the human observer. The image is subject to many kinds of distortions during the stages that it might pass through such as storing, processing, compressing, and transmitting, etc... In evaluating image quality there are two followed methods, the subjective and the objective method. The subjective method evaluation is considered costly, expensive, and time consuming; since we have to select a number of observers, show then a number of images and ask them to score images quality depending on their own opinion. The objective evaluation uses automatic algorithms to assess the quality of the image without human interfere.