Because I want to talk about the ppt I made, the first three sections of Chapter 10 of "Digital Image Processing":
Some blog references are from:
https://blog.csdn.net/yuyuntan/article/details/80141392
https://blog.csdn.net/qq_18815817/article/details/78625845
https://blog.csdn.net/u013165921/article/details/78309497
There may be some that I missed.
