java实现的图像降采样算法,可以指定参数n代表隔几行几列采集一次,实现图片缩小-java implementation of image down-sampling algorithm, you can specify the parameter n represents every few rows of columns collected once

图像的采样，量化。(灰度图)，java环境。-Under Java environment,including image s sampling and quanlization

这是一个对灰度图像进行量化和取样的java代码(This is a java code for quantifying and sampling grayscale images)