摘要
文章采用简单的实验验证了人眼视觉所具有的亮度掩蔽特性,得到了不同灰度级上的相对灵敏度阈值及人眼可分辨的亮度层次。使用该实验结果可避开亮度和灰度级之间关系的讨论,用亮度层次去度量人眼亮度感觉的变化,从而达到对图像质量快速准确评价的目的,并可为今后确定图像各频带信息对图像质量影响的大小提供一种方法。
In this paper, the characteristics of the human visual system are verified and the thresholds of visual contrast sensitivity and the luminance levels of each gray-level are given by experiment. Using the measure can avoid discussing the relations between luminance and gray-level. It is also a method which can help to get the weights of sub-band images. Experimental results show that the proposed measure scheme correlates better with perceptual image quality.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第2期173-175,共3页
Journal of Hefei University of Technology：Natural Science
基金
安徽省自然科学基金资助项目(01042105)
