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Integration of redundant data patterns into a grid to ensure scanability of damaged symbols.
Distinct from Error Correction Codes: Focuses on visual redundancy in 2D barcodes rather than general communication transmission error correction.
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node-qrcode is a JavaScript library and command-line tool for generating scannable QR codes from text or binary data. It functions as both a generator library for Node.js and web browser environments and a standalone command-line interface. The project supports producing QR codes in multiple formats, including raster images and scalable vector graphics. It can also render barcodes as text representations directly within a terminal for rapid visual verification. The generator includes capabilities for configuring error correction levels and optimizing data density through various encoding mod
Implements error correction levels that allow barcodes to remain scannable even when damaged or obscured.