bi-level image coding 二值图像编码
Progressive bi-level image compression 双电平图像逐渐压缩
jbig joint bi-level image group 联合双值图像编码标准
An optimum threshold is selected by maximizing the correlation between the original halftone image and the thresholded bi-level image.
该算法以原始图像与分割后图像的相关系数最大为准则，选取最优阈值对磨粒图像进行二值化。
The "intensity moment", which is preserved in the color image, is called bi-level threshold algorithm of moment 4-D clustering.
这种称为矩—四维聚类的两级阈值化算法不仅简单实用，而且效果较好。
Joint Bi - level Image Expert Group?
二值图像联合专家组JBIEG ？
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