Programmer Think

K-Means principle and implementation method of opencv (C + + and python versions) KMeans principle Today, record the principle of kmeans in opencv and an example of image segmentation. K-Means is an algorithm for data classification, which belongs to unsupervised learning. First, determine the number of categories for the image, that is, know ...

aircv It is a small open source project released by Netease. It should also be the most cited project for simple image matching. The last article did how to use find of aircv_ Template description, however, it is not a mature project. There are many small pits in it, which need to be improved. Today, let's do a code logic analysis.Core function ...

Introduction of preface It must be easy for everyone to encounter such problems when doing yolo target detection. In fact, I don't want to detect the items in a part of the picture. It doesn't matter Just like this corner, I only want to detect the target of the front channel. This corner should be handed over to another camera for recogn ...

Start using OpenCV 1. Compile OpenCV 1.1 configure OpenCV using the command line OpenCV official website tutorial The OpenCV official website tutorial is configured by using the command line. It is written in detail. Generally, it can be successful if you operate according to the tutorial. Because the domestic access to GitHub is unstable, ...

I The role of CommandLineParser This class belongs to one of many classes in opencv, which is used to parse the command line. When (int argc,char** argv) in the main function receives the input parameter, it can parse the input command through CommandLineParser to make different responses. One of the advantages of this parsing class is that wh ...

Previously, we talked about the two most commonly used image binarization algorithms, "Otsu method" and "optimal threshold iteration method", and made some improvements to the "optimal threshold iteration method", so that it can distinguish the foreground and background to a certain extent in the case of uneven ill ...

preface Some time ago, I wrote a blog about Python made a cool music player . Some fans asked me why the music player uses PyQt5. Is the effect better than Tkinter? Can PyQt5 really realize these cool UI images? I haven't contacted PyQt5 before. Can you share more development cases in this regard? Today, let's take you to develop an interest ...

What is target tracking: tracking a target in an image, to put it bluntly, is to track a small image in the image. Remember the concept of image and small image, so let's start.   Mean shift principle The principle of mean shift is to find the local optimum according to the gradient climb of probability density. probability density If ...

Welcome to my GitHub Here we classify and summarize all the original works of Xinchen (including supporting source code): https://github.com/zq2599/blog_demos Link to JavaCV face recognition Trilogy Save face in video as pictureTrainingIdentification and Preview Overview of this article As the end of the JavaCV face recognition trilog ...

Opencv java to achieve simple special effects Following the simple use of OpenCV Java last time, this time I share the implementation of some image processing effects. In fact, there are many special effects tutorials imitating ps, but most of them are in opencv and python versions, and there are few materials to implement opencv in java vers ...