Measurements of human vision contrast sensitivity to opposite colors using a cathode ray tube display

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 年，卷（期）: 2011,（23）
• 页码范围: 2425-2432
• 页数: 8页
• 分类号: TN873
• 语种: 中文

摘要

The contrast definitions of opposite colors red-green and blue-yellow, which have been described in the CIELAB and YC r C b color spaces, respectively, and a method to accurately control chroma and color differences on a cathode ray tube screen are presented according to the color display characteristics of cathode ray tubes. Using target gratings on a cathode ray tube screen, measurements of human vision contrast sensitivity to red-green and blue-yellow colors for 10 spatial frequencies (0.41, 0.82, 1.23, 1.97, 3.08, 3.79, 4.93, 7.04, 9.86 and 16.43 cpd) were carried out in 11 young observers in a dark environment. Contrast sensitivity functions of opposite colors were obtained, which can be used for practical applications in image technologies.