Photoshop algorithm with OpenCV (1): image rotation

https://blog.csdn.net/c80486/article/details/51867128 For a photo, the general processing steps of PS include: 1. Rotate the picture and correct the position. 2. Cut, resize and reconstruct. 3. Adjust the color order and curve to make the pictures exposed correctly and contrast moderately. 4. Adjust contrast and saturation 5. S ...

Posted by pr0x on Sun, 12 May 2019 13:37:37 +0200

Node.js-Ali Egg's Multiprocess Model and Interprocess Communication

Preface Recently, Egg has been used as a low-level framework development project, curious about the management implementation of its multi-process model, so I learned something and recorded it incidentally. If there are any mistakes in the article, please spray it lightly. Why multi-process is needed With the development of science and technolo ...

Posted by greenday on Sun, 12 May 2019 12:42:14 +0200

Implementation and debugging of communication between Java program and serial port

Below is a brief introduction of Xiaobian's latest project, involving the realization and debugging of serial communication. Principle of Serial Communication Serial communication refers to sending and receiving bytes by bit. Although it is slower than byte parallel communication, the serial port can receive data with another line while sen ...

Posted by meritre on Sun, 12 May 2019 00:33:59 +0200

Analysis of Structured Exception Handling in Windows

Recently, I have been puzzled by a problem, that is, the program always crashes without reason. Some places know that there may be problems, but some places have no way to know what the problems are. Even more painful thing is that our program needs 7x24 service customers, although it does not need real-time precision zero error, but can not al ...

Posted by FrancoPaddy on Sat, 11 May 2019 22:56:48 +0200

Key Points of Android APP Full Screen Adaptation Technology

The Concept of Full Screen Why explain the full screen first, because the word is now a false proposition. Full screen literally means that the front of the mobile phone is all screen, 100% of the screen. But nowadays, none of the manufacturers that launch so-called "full screen" mobile phones can achieve full scale. So ...

Posted by Jebs on Sat, 11 May 2019 11:39:04 +0200

Building wnmp under Windows

The running environment is windows server 2008 64-bit system. Installation directory D:/wnmp Mysql 5.7 Download Address: https://dev.mysql.com/downloads/mysql/5.7.html#downloads (This article chooses 5.7.25 | Microsoft Windows | All | Windows (x86, 64-bit), ZIP Archive) php7.2 Download Address: https://windows.php.net/downloads/releases/php-7. ...

Posted by cyberlew15 on Sat, 11 May 2019 09:05:31 +0200

Lesson 12: Running in the Background (based on Android Studio 3.2)

Now that we have some knowledge of UI elements and screens, we need to make them responsive. Response is not just about speed - how much work you can accomplish over time. What's more important is how fast the application is. When people say that the application responds, they usually mean that the application will not prevent ...

Posted by Lukeidiot on Fri, 10 May 2019 23:17:10 +0200

opencv-3.4.1 + qt-5.6.3 + vs2015 + cmake-3.11.1 Install opencv [Illustration]

1. Prepare: 1.cmake-3.11.1-win64-x64 https://cmake.org/files/v3.11/  2.qt-opensource-windows-x86-msvc2015-5.6.3  3.vs2015  4.opencv-3.4.1-vc14_vc15.exe   https://github.com/opencv/opencv/releases/tag/3.4.1 2. Install software: 1.cmake installation (unzip to use) 2.qt installation, also install WDB http://www.codemac ...

Posted by romanali on Fri, 10 May 2019 17:19:22 +0200

php downloads Chinese file name compression packages via header corrupted or non-existent

We all use utf8 code in development. Yesterday we encountered a strange pit. It was a small problem and wasted an hour to solve.Don't talk too much. Implant the topic: File download method: download from header binary stream fileRequirement: File upload keeps file name unchangedData field file_url value: /public/upload/files/2019/04-29/Chinese ...

Posted by Irksome on Fri, 10 May 2019 11:18:03 +0200

Use of DynamicData Display Real-time Curve Graph and Effect of Moving along Axis

Because of the need of the project, I am looking for some articles about drawing real-time curves recently, but I have seen a lot of my own implementations are too slow, so I use third-party controls to implement them (because it is used in the project, so I prefer to work with open source projects, if something goes wrong, I c ...

Posted by Jak on Thu, 09 May 2019 12:15:04 +0200