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Azure is a powerful cloud computing platform created by Microsoft. It provides various services and solutions including Web apps, virtual machines, SQL database and so forth. I’m interested in virtual machine service and have been experiencing it for a few days. During my work time, I often need to switch...
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More and more companies tend to release products for both Mac and Windows platforms. If a Windows developer wants to create apps for Mac OS, the most economical way is to use a virtual machine. When I upgraded my operating system from Windows 7 to Windows 10 and installed VMWare...
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In this tutorial, let’s see how easy to find all contours in an image with OpenCV APIs. Overview Finding contours is a useful task during image processing. The relevant OpenCV functions are as follows: Find contours in a binary image. void findContours(InputOutputArray image, OutputArrayOfArrays contours, OutputArray hierarchy, int mode, int...
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ZXing is an open-source, 1D/2D barcode image processing library implemented in Java. The supported barcode formats include UPC-A, UPC-E, EAN-8, Code 93, Code 128, QR Code, Data Matrix, Aztec, PDF 417, etc. Besides the Java version, developers can leverage other ported projects such as QZXing, zxing-cpp, zxing_cpp.rb, python-zxing and ZXing...
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Links is one of the critical SEO factors for a Website. When creating or re-designing some pages, we cannot ignore Website audit especially in terms of finding and tracking broken links regularly. Although there are many online tools, it is still worth learning and implementing such a tool ourselves for...
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Plenty of enterprises allocate static IPs and gateways to employees’ devices for better network management. For example, limiting the internet connection speed, monitoring intranet activities and so on. In my company, the network administrator sets up two gateways for accessing different broadband services. During my working time, I often need...
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In this tutorial, let’s learn how to use Hough line transformation with OpenCV to make line detection in an Image. Hough Line Transform The Hough Line Transform is a transform used to detect straight lines. OpenCV implements three kinds of Hough Line Transforms:(Standard Hough Transform, SHT),（Multi-Scale Hough Transform, MSHT）and (Progressive...
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Changes or discontinuities of amplitude attribute, such as luminance value, are fundamentally important primitive characteristics of an image. They often provide an indication of the physical extent of objects. Local Discontinuities of image luminance that from one level to another are called luminance edges. In this post, I’ll share how...
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Django is a Web application framework written in Python. In this article, I will focus on how to use Django to upload files. Besides a basic demo that based on HTML form, I will also share how to combine Dynamic Web TWAIN SDK with Django to scan and upload image...
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After writing articles talking about how to wrap Dynamsoft Barcode SDK to make Barcode extensions for Java, Python and JavaScript, I started to consider PHP. It is one of the most popular tags on StackOverflow. Most Web developers prefer using PHP for server-side development. Since PHP allows developers to write...