Title :
Study on the sequence of steps in the QR code image preprocessing
Author :
Zou, Xiong ; Liu, Guo-dong ; Wang, Jian-Min
Author_Institution :
Key Lab. of Photoelectron & Commun., Jiangxi Sci. & Technol. Normal Univ., Nanchang, China
Abstract :
Noise is inevitable in QR code image´s capturing. QR code image preprocessing process by means of graying, filtering and binarization is adopted to discern QR code image. In this article, first of all, the method of binarization before filtering is applied in the QR code image preprocessing. Then median filtering algorithm which is suitable for binary image is applied. According to the result of experiment, this method is better than traditional method in effect and speed.
Keywords :
codes; image processing; median filters; QR code image preprocessing; binarization process; binary image; filtering process; graying process; image capturing; median filtering algorithm; Acoustic noise; Error correction codes; Filtering algorithms; Filters; Image sampling; Laboratories; Logic; Noise reduction; Pixel; Shape; Binarization; Image preprocessing; Median filtering; Quick response code; Two-dimensional bar code;
Conference_Titel :
Future Computer and Communication (ICFCC), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5821-9
DOI :
10.1109/ICFCC.2010.5497554
