How to Make QR Codes on iPhone or iPad. Barcodes—or in this case, QR codes—consist of basic black and white patterns that, ...

Here's how the new QR code sharing feature will work in Google Photos for easily and quickly sharing albums and moments.

This rectangular-shaped QR code is designed to be used on narrow ... Decoding is performed by separating the color image into its RGB components and then decoding the resulting three images.