A new image quality assessment criterion is suggested on the basis of the statistical features of the gray - level histogram of images to control the iterative procedure of the proposed image enhancement algorithm 同時(shí)為了結(jié)束迭代增強(qiáng),基于圖像灰度直方圖分布的統(tǒng)計(jì)特性,提出了一種客觀的圖像質(zhì)量評(píng)價(jià)指標(biāo)。