Home > Article > Backend Development > Python image introductory tutorial: Recommended Python image introductory tutorial
Mirroring changes to the image do not change the shape of the image. There are three types of image mirroring transformations: horizontal mirroring, vertical mirroring, and diagonal mirroring. Assume the size of the image is M×N, then the horizontal mirroring can be according to the formula I = iJ = N - j + 1. The vertical mirroring can be according to the formula I = M - i + 1J = j diagonal mirror can be calculated according to the formula I = M - i + 1J = N - j + 1. It is worth noting that the coordinates in OpenCV start from [0,0], so +1 in the formula is When programming, you need to change it to -1. The running environment here is: Python is: Python2.7.6. OpenCV2.4.10 version of numpy is: numpy-1.9.1-win32-superpack-python2.7. The following code still uses baby Meitu as an example for the specific program. As follows: import cv2.cv as cv image = cv.LoadImage('angelababy.jpg',1) size =
1. mirror implementation method in python
# #Introduction: The example in this article describes the mirror implementation method of python image processing. Share it with everyone for your reference. The specific analysis is as follows: The mirror image change of the image does not change the shape of the image. There are three types of image mirroring transformation: horizontal mirroring, vertical mirroring, and diagonal mirroring. Assume the size of the image is M×N, then the horizontal mirroring can be according to the formula
2. Python image grayscale transformation and image array operation methods
##Introduction: This article mainly introduces Python images For related information on grayscale transformation and image array operations, friends who need it can refer to
3.
Introduction: Recently I have been wondering if there is a tool for image text recognition? I thought of OCR, the relatively powerful Hanwang OCR in China. So can it be achieved with the help of python?
4.
Inverse color implementation method of python image processing##Introduction: This article mainly introduces python images The implementation method of inverse color processing involves Python combining OpenCV and numpy related skills to operate images. Friends in need can refer to
5.
Python image grayscale transformation and image array OperationIntroduction: This article mainly introduces Python image grayscale transformation and image array operations. For information, friends who need it can refer to
6.
Python image processing mirror implementation methodIntroduction: This This article mainly introduces the mirror implementation method of python image processing. The example analyzes the mirror implementation principle and specific operation methods. Friends in need can refer to the following
[Related Q&A recommendations]:
python image processing, white balance
The above is the detailed content of Python image introductory tutorial: Recommended Python image introductory tutorial. For more information, please follow other related articles on the PHP Chinese website!