contrast scale meaning in Chinese
对比量表
反差标度
Examples
- With the mean of range block , the compression ratio is improved , the coding time and reconstruction time are decreased . then we discuss the relations among range blocks covariance , contrast scaling s and mse
采用值域块均值作为分形编码的参数可加快分形编码的速度，提高压缩比和加快分形图像压缩解码的收敛速度。 - The analysis shows why a better reconstruction image is obtained when the range of contrast scaling s is larger than one . finally , an algorithm of characteristic value is given based on the convergence characteristics of fractal image coding and the effect of different values of contrast scaling s
然后对值域块方差、比例因子s和均方误差之间的关系进行了研究，从理论上说明了为什么当s的取值超过1以后可以获得较好的重构图像。最后基于分形图像编码的收敛特性和比例因子s的取值特点提出了特征值算法。 - On the basis of the authors ’ results published in this journal [ 67 ] , this paper further proposed two strategies which improved both quality and speed of fractal encoding : one , a priori adding additive white gaussian noise into the image being encoded to reduce the domain blocks that are unlikely to meet the constraint on contrast scaling factors ; the other , range blocks with small standard deviations are directly approximated by the constant block ( i . e . , all the
在笔者原有结果[计算机仿真, no . 8 , 2004 ]的基础上,本文提出进一步提高解码图像质量和编码速度的方案:一是预先在待编码图像中添加高斯白噪声以进一步减少不满足对比度因子约束的domain块的数目;二是对小方差range块直接用其均值块代替以进一步加快编码速度。