1. Theory The basic principle of the image enhancement algorithm is to “reduce low-frequency areas and highlight high-frequency areas” to strengthen edges and achieve the purpose of enhancement. The simplest example is to enhance the edges by subtracting the Gaussian blur from the original image. Histogram equalization is also a very common enhancement method. However, […]
Tag: contrast
SelfSupervised Contrastive Learning for Medical Image S
Author: Zen and the Art of Computer Programming 1. Introduction 1.1 Research Background and Significance With the explosive growth, popularity and wide application of medical image data, data analysis based on medical images is playing an increasingly important role in medical diagnosis, pathological classification, auxiliary diagnosis and other fields. The method based on self-supervised learning […]
Digital image processing: brightness contrast-geometric transformation-noise processing
Article directory digital image enhancement Brightness and Contrast Conversion geometric transformation Image cropping size transformation image rotation Noise processing add noise Dealing with noise Digital image enhancement Brightness and contrast conversion Image transformation can be divided into the following two types: Point operator: Based on pixel transformation, in this type of image transformation, the corresponding […]
[GNN+Anomaly Detection] ANEMONE: Graph Anomaly Detection with Multi-Scale Contrastive Learning
Article directory Introduction to the paper Summary Problems Paper contribution illustrate 1. ANEMONE framework 2. Experiment Summarize Paper content Introduction to the paper Original title: ANEMONE: Graph Anomaly Detection with Multi-Scale Contrastive Learning Chinese title: Graph anomaly detection based on multi-scale contrastive learning Post a meeting: CIKM Publication year: 2021-10-26 Author: Ming Jin latex citation: […]
Opencv c++ contrast enhancement (1. Multi-scale Retinex; 2. LICE-Retinex; 3. Adaptive logarithmic mapping.)
Commonly used contrast enhancement: histogram equalization, gamma transformation, logarithmic transformation, which can basically solve common industrial problems. This issue mainly talks about three contrast enhancement algorithms with better effects: 1. Multi-scale Retinex; 2. LICE-Retinex; 2. Adaptive logarithmic mapping. Multi-scale Retinex The basic content of the Retinex theory is that the color of an object is […]
Unity3DAdjust screen brightness, saturation, contrast
1 screen post-processing process ? To adjust screen brightness, saturation, and contrast, you need to use screen post-processing technology. Therefore, this article will first introduce the screen post-processing process, and then introduce the implementation of adjusting screen brightness, saturation, and contrast. ? For the complete resources of this article, see →Unity3D adjust screen brightness, saturation, […]
C# OpenCvSharp changes the contrast and brightness of the image
Effect Project refer to Code using System; using System.Collections.Generic; using System. ComponentModel; using System.Data; using System. Drawing; using System. Linq; using System. Text; using System. Windows. Forms; using OpenCvSharp; namespace OpenCvSharp_ change the contrast and brightness of the image { public partial class Form1 : Form { public Form1() { InitializeComponent(); } Mat src;//source map […]
The principle of image to ASCII character pattern (adjustable brightness contrast width and height)
Come, let’s see the effect first hahahaha! Demo address: http://ascii-picture.imlht.com/ “\` “”” . “\`”””””””””””””””””””w$@w”””””””””””””””” “”””” “””””””\`”””””””””””””$$$$$$$$$00$$0″”””””””””””””””””” ” “”””””””””””””””$$$$$$$$$$$$$$$$$$$$0″””””””””””””””” “””””” “””””””$$$$$$$$$$$$$$$$$$$$$$$””””””0(“””””””””””” “”””” $$$$$$$$$$$$$$$$$$$$$$$$$00 & amp;0(“”””””””””””””””””””” “””” \` $$$$$$$$$$$$$$$$$$$$$$$$$$$$$ & amp;hLLLL(~~””””””””””””” “”””””” “””. “”””””$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$@0000000L”” “””””””””””””\` “””””””””””””””” “”0$$$$$$$$$0(“(0$$$$$$$$$$$$$$$$$ $$$$$$$$$@ & amp; & amp;h0000v”””””””””””. “”””””””””””””””””””””””””””. “”$$$$$$$$0″””””v00$$$$$$$ $$$$$$$$$$$$$$$$$$$$$$$$000(“””””””” “”””””””””””””””””””””””””””””””””””””””$$$$$0″”””” “””””(00h$$$$$$$$$$$$$$$$$$$$$$$$$$$$$w0″”” “”””””””””””””””””””””””””””””””””””””””$$$$00$$0″”($$ $$$$$”””$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$h” “””””””””””””””””””””””””””””””””””””””0$$$$$$$$0″v$ $$$0″( & amp;0″””$$$$$$$$$$$$$ & amp;””$$$$$$$0″”h$$$ & amp;h0w […]
Digital Image Processing3. Contrast Enhancement
Directory 3.1 Gray histogram 3.2 Linear Transformation 3.3 Histogram regularization 3.4 Gamma Transformation 3.5 Global histogram equalization 3.6 CLAHE Contrast enhancement is a kind of image enhancement, it mainly solves the problem of low contrast caused by the small gray scale range of the image, the purpose is < strong>Enhance the gray level of the […]
Contrastive use of C++11 thread pool and Linux C++ thread
Article directory 1. C++11 thread pool code threadpool.h threadpool.cpp main.cpp compile 2. Linux C++ thread pool pthreadPool.h pthreadPool.cpp pthreadPool.cpp compile 1. C++11 thread pool code threadpool.h #ifndef _THREADPOOL_H #define _THREADPOOL_H #include <future> #include <functional> #include <iostream> #include <queue> #include <mutex> #include <memory> #ifdef WIN32 #include <windows.h> #else #include <sys/time.h> #endif using namespace std; void getNow(timeval […]