Two-dimensional code generation method, two-dimensional code, two-dimensional code recognition method, and image recognition device

摘要

A two-dimensional code recognition method comprises:a focused point pixel information detection step of detecting a reference point correspondence position of a recognition target image, calculating a focused point correspondence position on a recognition target image corresponding to a focused point set while being associated with a reference point based on the reference point correspondence position, and detecting pixel information of the recognition target image based on the calculated focused point correspondence position; anda correspondence data calculation step of calculating correspondence data associated with a two-dimensional code based on the detected pixel information.