The resulting images contain grey levels as a result of the anti-aliasing technique used by the normalization algorithm. the images were centered in a 28x28 image by computing the center of mass of the pixels, and translating the image so as to position this point at the center of the 28x28 field.
这是官网给的文档，请问The resulting images contain grey levels as a result of the anti-aliasing technique used by the normalization algorithm是什么操作，通过灰度归一化而达到反锯齿的效果，有没有大神解释解释，这是个什么算法？我想尽可能了解Mnist数据的来源，因为项目需要