[OpenCV4] detailed explanation of Grabcuts image segmentation algorithm

The content shared in this article comes from the book "learning OpenCV 4: Python based algorithm practice", which is as follows: Chapter 1 OpenCV Quick start; Chapter 2 image reading and writing module imgcodecs; Chapter 3 core library module core; Chapter 4 image processing module imgproc(1) (a); Chapter 5 image processing module ...

Added by jasonc310771 on Tue, 08 Mar 2022 02:06:13 +0200

Target tracking single target tracking based on OpenCV

In this tutorial, we will learn to track objects using OpenCV. OpenCV 3.0 began to introduce the tracking API. We will learn how and when to use the eight different trackers available in OpenCV 4.2 - BOOSTING, MIL, KCF, TLD, MEDIANFLOW, GOTURN, MOSSE and CSRT. We will also learn the general theory behind modern tracking algorithms. 1. What is ...

Added by slough on Mon, 07 Mar 2022 14:48:14 +0200

iOS uses Metal to realize filter and dynamic filter

preface Harbeth It is a small part of utilities and extensions on Apple's Metal framework, which is committed to making your Swift GPU code more concise and allowing you to build pipeline prototypes faster. This paper introduces and designs the filter based on GPU, graphics processing and filter making 👒👒👒 Function list 🟣 At present, Met ...

Added by mkr on Mon, 07 Mar 2022 12:16:10 +0200

ubuntu18.04 installing opencv4 5.5 and opencv contrib4 five point five

Step 1: download the source code package from github And put opencv and opencv contrib in the same directory At the same time, create a new build folder in this directory mkdir build Step 2: install dependency #Installation tools sudo apt-get install cmake cmake-qt-gui git unzip #Installation dependency sudo apt-get install build-esse ...

Added by ianwest on Sun, 06 Mar 2022 15:44:29 +0200

Analysis of grassland grass animal balance monitoring image

catalogue 1, Introduction 2, Color recognition principle 3, Functional module design 4, Coverage calculation process 5, Software implementation effect 1, Introduction With the continuous strengthening of the national awareness of ecological and environmental protection, the balance of grassland grass and livestock has been paid more a ...

Added by stuworx on Sat, 05 Mar 2022 11:49:54 +0200

[learning OpenCV4] detailed explanation of watershed algorithm

The content shared in this article comes from the book "learning OpenCV 4: Python based algorithm practice", which is as follows: Chapter 1 OpenCV Quick start; Chapter 2 image reading and writing module imgcodecs; Chapter 3 core library module core; Chapter 4 image processing module imgproc(1) (a); Chapter 5 image processing module ...

Added by coverman on Fri, 04 Mar 2022 14:45:12 +0200

Preliminary exploration of Opencv source code

Preliminary exploration of Opencv source code preface This blog is mainly to record some learning experiences about opencv library, and intersperse some basic knowledge of image processing. The analysis is based on opencv 4.5.1. There may be some interface changes in other versions. Please also note. prepare The first is the installation of op ...

Added by MtPHP2 on Fri, 04 Mar 2022 08:40:51 +0200

C language improvement

Structure array sorting On the basis of the previous program, add the age variable to the structure, and then sort it according to the age of (Teacher) Define structure: typedef struct Teacher { int age; char **stu; //Two dimensional memory }Teacher; First assign a value to age, and then compare the size of age. Notice how it's exchan ...

Added by RedRasper on Thu, 03 Mar 2022 15:10:56 +0200

Xi Supplementary knowledge of credit card identification project

Supplementary knowledge of credit card identification project 1. Template matching The principle of template matching is similar to that of convolution. The template slides from the origin on the original image to calculate the difference between the template and (where the image is covered by the template). There are six calculation methods ...

Added by Brendan on Thu, 24 Feb 2022 13:26:25 +0200

Have you really done push ups? Dare you test it with Python

preface: At the Winter Olympics, Gu ailing "soared to the sky", Su Yiming "A blockbuster", the dream team of short track speed skating "forge ahead"... The athletes' spirit of challenging the limit and climbing the peak has aroused the enthusiasm of countless audiences! These athletes who ignite the Winter Olympi ...

Added by BuckeyeTheDog on Wed, 23 Feb 2022 02:04:02 +0200