【摘要】 应用Logistic模型拟合彩色遥感图像的D -t曲线 ,是定量分析Y(黄 ) ,M(品红 ) ,C(青 )分解密度与曝光时间关系的一种新方法 .结果表明 ,Y ,M ,C分解密度的预测值与实测值达到了较好的吻合 .决定系数R2 Y=0 982 5,R2 M=0 9675,R2 C=0 994 3 ,相应的标准偏差σY=0 0 53 ,σM =0 1 0 0 ,σC=0 0 1 5,可以满足定量计算的精度要求 .更多还原

【Abstract】 A novel method by using Logistic model to fit D-t curves of the color remote sensing image is proposed to analyse the relation between Y,M,C analytical density and the exposure time.the results shows that the predicted value of Y,M,C analytical density fits the measured value fairly good.The decision coefficients are R 2 Y=0.982 5,R 2 M=0.967 5 and R 2 C=0.994 3.The corresponding standard deviation are σ DY =0.053,σ DM =0.100,and σ DC =0.015 .Those results are able to satisfy the precision demand of the quantitative calculation.更多还原