介绍了均方误差，偏置和方差分解，介绍了无偏估计。并说明了最小二乘估计OLS的无偏性和MSE。

阈值处理，主要用到函数cv2.threshhold()示例代码：'''This program is used to show how to use threshholdfunctions in OpenCV for python'''#coding:utf-8import numpy as npfrom cv2 import cv2#此处不指定0，则按照三通道办法读取，造成自适...

介绍OpenCV for python中的形态学运算可怜的lena，纵我虐她千百遍，她仍待我如初恋。'''This program is used to show how to useMathematical Morphology functinos in OpenCVfor pythoncoding:utf-8'''import numpy as npfrom cv2 impo...