OpenCVには、オリジナルC++からPython、Javaなどの言語バインディングがありますが、WebAssemblyを組み込んだopencv.jsというJavaScript版もあります。OpenCVの機能がWebAssmeblyコードから引き出して使えるので、ネイティブ並みのパフォーマンスが期待できる ...

If you're not familiar with QR (Quick Response) codes, they are mobile barcodes that you can encode with different types of information, and then use a smartphone camera, and QR code reader app -- ...

QR codes are a type of high-density matrix barcodes, and quirc is a library for extracting and decoding them from images. It has several features which make it a good choice for this purpose: It is ...

The buffer will contain uninitialized data. After the call to quirc_end, the decoder holds a list of detected QR codes which can be queried via quirc_count and quirc_extract. At this point, the second ...