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It's a bloody lesson. It doesn't take long to complete the code, but the environment really spits people out. Here, let's talk about the stepped pits and solutions Blogger's environment: ubuntu18.04 + pychar When I was a freshman, the laboratory required to learn Tensorflow, and took over a project from the seniors. I was responsible for visu ...

Grayscale Grayscale import cv2 #opencv reads in BGR format img=cv2.imread('cat.jpg') img_gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY) img_gray.shape cv2.imshow("img_gray", img_gray) cv2.waitKey(0) cv2.destroyAllWindows() HSV H - Tone (main wavelength). S-Saturation (shadows of purity/color). V value (intensity) cv2.imshow("hsv", ...

Python 1. Python basic syntax 1.1 Python identifier In Python, identifiers consist of letters, numbers, and underscores. In Python, all identifiers can include English, numbers, and underscores (), but cannot begin with a number. Identifiers in Python are case sensitive. Identifiers that begin with underscores have special meaning. St ...

Practice compiling and installing the famous C/C + + image processing open source software library Opencv3.x under the Ubuntu 16 / 18 system. Preface (installation steps of opencv) Reference article: https://blog.csdn.net/forever_008/article/details/103625637 According to step by step, problems can be solved by Baidu Tip: opencv has ...

View the installed opencv version number pkg-config --modversion opencv pkg-config --modversion opencv4 opencv uninstall sudo make uninstall cd .. sudo rm -r build sudo rm -r /usr/local/include/opencv2 /usr/local/include/opencv /usr/include/opencv /usr/include/opencv2 /usr/local/share/opencv /usr/local/share/OpenCV /usr/share/opencv /usr/sh ...

catalogue 1, Install OpenCV 1. Download installation package 1) Download OpenCV package 2) Installing opencv using cmake 4) Use make to create a compilation. 5) Installation 2. Configuration environment 2, Usage example -- picture 3, Usage example -- Video 1. Get camera permissions for virtual machine 2. Play video ​​   3. Rec ...

catalogue 1, Generating static library and dynamic library files with gcc 2, Compilation of gcc and EFF files 3, Learning opencv image library programming 4, Summary 1, Generating static library and dynamic library files with gcc Static library and dynamic library Static library When the program is compiled, it will be connected to the obje ...

The purpose of this paper is to compile and install the famous C/C + + image processing open source software library OpenCV3.4.12 on Ubuntu 18.04 system, and practice using OpenCV to process pictures and videos. 1, Compile and install OpenCV   1. Compile and install source code Now there are some posts about installing OpenCV on the I ...

catalogue 1, Install opencv based on Ubuntu 2, Pictures of relevant operations   3, Video of relevant operation   4, Summary 5, References 1, Install opencv based on Ubuntu 1. Installation of opencv dependent environment 1.1 installation cmake First, open the Ubuntu virtual machine, open the middle end, and enter the comma ...

1, Introduction to opencv OpenCV is a cross platform computer vision and machine learning software library based on BSD license (open source), which can run on Linux, Windows, Android and Mac OS operating systems. It is lightweight and efficient - it is composed of a series of C functions and a small number of C + + classes. It also provid ...