All Developer Tutorials — Page 23 of 34

Step-by-step tutorial to build a reusable JavaScript image filter library using the Canvas API. Covers grayscale, sepia, invert, and black-and-white filters with OTSU thresholding, plus integration with Dynamsoft Document Viewer.

The article talks about how to build an ID card scanner with React Native, Vision Camera and Dynamsoft Label Recognizer.

Learn how to implement web document scanning in ASP.NET Core MVC using Dynamic Web TWAIN SDK — scan documents from TWAIN scanners in a browser, upload as JPG/PDF/TIFF, and handle files server-side in C#.

Learn how to use a JSON-based Domain-Specific Language (DSL) to configure document scanning, barcode reading, and text recognition tasks in Dynamsoft Capture Vision — with cross-platform template reuse.

Learn how to automatically assess scanned document image quality — detect blur, skew, overexposure, and aspect ratio issues using OpenCV.js, Tesseract.js, and Dynamic Web TWAIN in a JavaScript web app.

Learn how to binarize an image using the JavaScript Canvas API with manual and OTSU automatic thresholding, plus a Dynamic Web TWAIN approach for enterprise-scale document processing.

Learn three ways to convert an image to grayscale in JavaScript — CSS filters, HTML5 Canvas pixel manipulation, and the Dynamic Web TWAIN SDK — with full source code and online demo.

Learn three ways to flip or mirror an image horizontally and vertically in JavaScript using CSS transforms, HTML5 Canvas 2D context, and Dynamic Web TWAIN for batch document processing.

Learn two ways to resize images client-side with JavaScript before uploading — using the HTML5 Canvas API for quick resizing and Dynamic Web TWAIN for batch document processing without quality loss.

Learn three ways to rotate and deskew images in JavaScript — CSS transform, HTML5 Canvas, and Dynamic Web TWAIN SDK — with full source code and edge-case handling.