Yuan Ze University

Pei-Yu Lin

Wei-Chih Liao

Ran-Zan Wang

Provided herein is a method for generating a two dimensional barcode including hidden data, including steps of: acquiring a first two dimensional barcode and extracting a plurality of first data modules from the first two dimensional barcode, wherein the first data modules represent an original message data, and acquiring the hidden data and processing the first data modules to embed the hidden data in the first data modules to generate a plurality of second data modules and performing an error correction code encoding on the second data modules to adjust the second data modules and generate a plurality of error correction code modules and merging the adjusted second data modules and the error correction code modules to generate a second two dimensional barcode.

Method and system for generating two dimensional barcode including hidden data

A method for generating a color QR code includes: generating a grayscale image according to a color image; providing a QR code and dividing the grayscale image into the number of grayscale image modules matching module numbers of the QR code; generating a threshold mask image from grayscale image modules; cutting out each center block from center part of each grayscale image module and calculating characteristics values of the center blocks; identifying color of each module of the QR code, and comparing the characteristics values of the center blocks of the grayscale image to the corresponding threshold value compensated by robustness value to identify center blocks needing pixel luminance adjustment; dividing the center blocks needing pixel luminance adjustment into multiple layers of blocks; adjusting pixel luminance of the multiple layers of blocks using the robustness value times with corresponding weightings; and generating a fused color QR code.

Growing community of inventors

Taoyuan, Taiwan

Pei-Yu Lin