On the average of two line chroma signal in succession, delay demodulator made color image vertical resolution reduce, the paper analyses and discusses this question.
延时解调器将相邻二行的色度信进行平均使彩色图象垂直分解力下降，本文对这一问题进行分析和讨论。
Through multi index, fast management and display, on-line browsing, local up-scaling and down-scaling, multi-resolution display of image data can be realized.
通过多级索引指针，可以实现影像数据的快速调度与显示，实时漫游、局部放大和缩小、多分辨显示等操作。
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