基于Hough变换的二维条码图像倾斜校正研究

Research of Two-dimension Barcode Skew Correction Based on Hough Transform

二维条码图像扫描时会出现倾斜。为了实现二维条码的准确识别,必须先对二维条码进行倾斜校正。以PDF417条码为例,提出了一种基于Hough变换的倾斜校正方法。实验结果表明,该方法能有效地提高条码的识别率,效果良好。

The scanned images of two - dimension barcode tend to be skew. In order to recognize two - dimension barcode correctly, the skew of two - dimension barcode must be corrected first. A method of skew correction based on Hough transform is presented in the paper by using PDF417 as an example. The experiment results show that the method can effectively improve high recognition rate of barcode, which is proved to be a good result.