[OpenCV image implementation: White balance algorithm using OpenCV image processing techniques]

Article directory summary Load sample image Statistical data analysis White Patch Algorithm summary Summary White balance technology plays a vital role in photography and image processing. Under different lighting conditions, the camera may not accurately capture the true color of an object, resulting in images that appear dull, unnatural in tone, or washed out. In […]

[MT8766][Android12] Add application installation whitelist or blacklist

Article directory Basic information of development platform Problem Description Solution Basic information on development platform Chip: MT8766 Version: Android 12 kernel: msm-4.19 Problem description During project development, some customers often require the system to perform signature verification when installing applications; that is, the system does not allow any application installation by default. When the application […]

Android 11 adds all privileged permissions whitelist

Environment Android 11 SDK Requirements After modifying some built-in system APPs and adding some permissions, it may cause the problem of restarting after burning the firmware. When running logcat, an error similar to the following will be printed: 023-11-08 11:36:23.854 4173-4173/system_process E/AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: main java.lang.IllegalStateException: Signature|privileged permissions not in privapp-permissions […]

Some basic image preprocessing—normalize the scale of all pictures in a file, view the RGB value of each pixel, switch the specified color to white, and switch all pictures in the file from png to jpg

Table of Contents 1. Normalize the scale of all pictures in a file 2. View the RGB value of each pixel of an image 3. Switch the specified color to other colors (switch red to white in the code) 4. Switch all pictures in a file from png to jpg 5. Rename all images in […]

A fully automated white hat vulnerability scanner

DarkAngel is a fully automated white hat vulnerability scanner that can monitor hackers and bugcrowd assets, generate vulnerability reports, screenshot vulnerability URLs, and send message notifications. Currently supported features: Hacker asset monitoring; Swarm asset monitoring; Add user-defined assets; Subdomain scanning; website crawler Website fingerprinting; vulnerability scanning; Automatic screenshot of vulnerability URL; Automatically generate vulnerability reports; […]

Help understand: diversity, interleaving, SFFT, additive Gaussian white noise

Variety Diversity is a technique used in wireless communications to increase signal reliability and reduce the effects of fading. The core idea is to improve communication quality through multiple independent or nearly independent signal replication. Because each signal replica experiences a different propagation path or condition, they may not all be affected by fading at […]

Application of C++ prefix sum algorithm: minimum white bricks covered with carpet Principle source code test case

Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos Title You are given a binary string floor whose index starts from 0, which represents the color of the bricks on the floor. floor[i] = 0’ means that the color […]

Deploying WBO online collaboration whiteboard on Linux system

Deploying WBO online collaboration whiteboard on Linux system 1. Introduction to WBO whiteboard tools 1.1 Introduction to WBO whiteboard 1.2 Features of WBO whiteboard 2. Introduction to local environment 2.1 Local environment planning 2.2 Introduction to this practice 3. Check the local environment 3.1 Check local operating system version 3.2 Check the system kernel version […]

Build a real-time collaborative whiteboard application using React and Node

In today’s rapidly developing digital environment, real-time collaboration has become an important feature of various network applications. Being able to work together seamlessly, regardless of geography, has transformed the way teams collaborate and communicate. This article will show you how to use React and Node to build a web application that provides real-time collaborative whiteboarding. […]