A Blind Watermarking Method with Strong Robust Based on 2D-Barcode

A watermarking technique based on 2D-barcode and human visual system is proposed. A structured 2D-barcode, PDF417, is used as watermark . In order to reduce the inserting watermark data, the 2D-barcode is preprocessed before inserted through omitting border of barcode, heading and ending characters , reducing barcodepsilas modules and scrambling the watermark based on chaotic sequence. A mask of the source image is modulated based on wavelet transform and a best region is chosen by using the human visual system performance. It is a blind watermarking system because the extraction and detection are independent on any original information in prior of inserting operation, restoring the heading and ending characters of the barcode. This technique enhanced the robust through watermark structure and embedding algorithm, which strengthens the resistance for different attacks.