Most windows users like to download an installer to install software. However, for developers, probably they would rather like to use a command line tool (APT, Homebrew, etc.), like they get used on Linux and macOS, to install a program. Chocolatey is a command line package manager for Windows.
Last week, I built a Debian package for Dynamsoft Barcode Reader. Installing .deb file is apparently more efficient than using the .tar file on Linux OS based on Debian. Despite this, I believe most of Linux developers will give priority to the command-line package tool apt-get, unless the software repository is out of date. This is why I decided to create a private Debian repository to simplify the process of downloading and installing Dynamsoft Barcode Reader SDK for Linux.
Dynamsoft Barcode Reader for Linux is released as a .tar.gz file. To use the barcode SDK, first, you have to download and extract the compressed package. Then, copy the shared libraries to /usr/lib folder or export the library search path. The process seems to be easy, but as a matter of fact, some developers who are new to Linux platform always suffer from the issue – shared library not found. To simplify the SDK installation and deployment, I decided to create a Debian package.
If you have a program designed for multiple platforms, you definitely don’t want to waste time configuring and maintaining the building environment. I was thinking how to compile my C/C++ code for Windows, Linux and macOS more conveniently, and after that, I decided to learn CMake. CMake is an open-source, cross-platform tool designed to build, test and package software. This post is just the start for Windows platform.
Document Scanning is nothing new for mobile apps. I remember the first time that I installed a document scanning app was in 2010. However, Apple, Microsoft, and Google the giant tech companies got started to recognize the importance of document scanning technology recently. It is good to see the function appears in iOS Notes, Office Lens and Google Drive. Why is the document scanning being hot now? I think the reason is the quality of images captured by mobile cameras is getting better and better. More and more users tend to scan documents with cameras instead of traditional scanners. If you are not familiar with Android and iOS development, you can use HTML5. In this post, I will share how to create a simple web document management app using OpenCV.js.
When porting code from Python 2 to Python 3, it is not as easy as you imagined no matter whether the primary programming language is Python or C/C++. Re-compiling the Dynamsoft Barcode extension for Python 3 is a challenge because I only found a few of documentation and resources online. Luckily, I succeeded in using Python 3 compatible APIs after reading the source code of Numpy.
A few weeks ago, Apple released Swift 4.0 which is available for macOS and Ubuntu 14/16. In this post, I will share how to implement a simple Swift barcode reader (command line tool) with Dynamsoft Barcode Reader SDK for Linux.
For the past week, I was looking for a live streaming solution to broadcast video from a USB webcam that connects to Raspberry Pi. This post will help you set up a live streaming server on Raspberry Pi step by step.