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Next to the previous blog, continue to analyze: Opencv3 and opencv4 are installed on the computer at the same time, so the problem is how to write the CmakeLists.txt file when you are working on a project, when you are using opencv3, and when you are using opencv4, how to write the CmakeLists.txt file, ...

Basis of wavelet transform Wavelet basis The principle understanding and why wavelet should be used can be referred to as follows: https://zhuanlan.zhihu.com/p/22450818 , some of which are helpful for understanding wavelet transform. The basic contents are as follows: 1. Fourier transform (FT) can better analyze the frequenc ...

opencv full name open source compute vision, open source visual Library 1, Preparations The steps to import opencv are relatively simple. The preparation steps are divided into the following three steps: Download opencv android sdk https://opencv.org/releases.html Copy opencv Android SDK / SDK / native / LIBS to jniLibs of ...

opencv basic operation # -*- coding: utf-8 -*- # Author: xurongzhong#126.com wechat:pythontesting qq:37391319 # Technical support nail group: 21745728 (pythontesting invitation can be added) # qq group: 144081101 591302926 567351477 # CreateDate: 2018-11-17 import imutils import cv2 # Read picture information image = cv2.imread("jp.png") ...

At present, there are several mainstream image databases: 1. OpenCV      2. PIL(Pillow)       3. matplotlib.image     4. skimage      5. scipy.misc Conclusion: OpenCV is the most powerful and mature image library.   1.1 reading and storage of OpenCV image import cv2 #Read image directly numpy Matrix format img = cv2.imread('horse.jpg ...

Prerequisite Install the Invida graphics card on your computer; Install Invida driver, version recommendation is more than 10; Install cuda and cudnn; github downloads opencv, opencv_contribute; local cmake compiles opencv; target In cpp, use the cuda kernel function written by you; Reasons for writing this article Recently, I was writing cud ...

matlab has to find the extreme value function findpack can only find one-dimensional extreme value, and opencv has no corresponding function, so-called extreme value is larger than the surrounding values, and then it depends on the degree of extreme value required: /*Calculate the center point of the divisible stone -- the big ...

This article starts from personal blog https://kezunlin.me/post/6580691f/ Welcome to read! compile opencv with CUDA support on windows 10 Series Part 1: compile opencv on ubuntu 16.04 Part 2: compile opencv with CUDA support on windows 10 Part 3: opencv mat for loop Part 4: speed up opencv image processing with openmp Guide requirements: win ...

Preface: FileStorage (const string & soutce, int flages, const string & encoding = string (): class constructor source: If the file name to be opened or the string to be read is the file name, the file suffix determines its format, and the file suffix plus. gz becomes a compressed file. fl ...

Python+OpenCV program for batch clipping of images In the process of learning online online courses recently, I used mobile phones to intercept a lot of pictures in order to facilitate the review after class. But the interception of the picture files occupied a lot of memory, and there were black and ...