QRcode extraction and correction method based on maximum connected area
A method of QRcode extraction and correction based on the maximum connected area is proposed. The method of regional area description is adopted to mark the maximum connected area and magnifies it to obtain the general area of QRcode. This paper takes its outline by the closing-operation, detects the contour lines and calculates its intersections by Hough transform. The image geometry transform method is adopted to realize coordinate value and pixel value transform which can eliminate geometric distortion.Experimental result proves the method’s effectiveness in fast location.
国家科技期刊平台
NSTL
万方数据
维普
