1、用matlab编写采样和量化程序，并对比分析不同空间和幅度分辨率的数字化图像的效果；对比分析自己程序与matlab自带函数的效果； 2、用matlab编写彩色图变灰度图和二值图。-1, using matlab sampling and quantization procedures, and comparative analysis of the effect of different spatial and amplitude resolution digitized image