【摘要】 应用Logistic模型对彩色电影负片的D lgH感光特性曲线进行拟合 ,并计算相关的照相性能参数。统计分析结果表明 ,其分层曲线的拟合优度分别为σDR=0 0 2 4 7,σDG=0 0 0 80 ,σDB=0 0 2 5 9。相关的照相性能参数的计算精度 ,亦达到了国际标准化组织 (ISO)所要求的标准。更多还原

【Abstract】 The Logistic model was adopted to fit D -lgH photographic characteristic curves of color motion picture negative film, and the correlative photographic property parameters was calculated.The statistical analysis results showed that the goodnesses of fit of its laminated curves were respectively,σ_ DR =0.0247,σ_ DG =0.0080 and σ_ DB =0.0259.The calculation precision of corresponding photographic characteristic parameters also reaches the standard required by International Standardization Organization (ISO).更多还原