2Premaratne P, Safaei F. 2D Barcodes as Watermarks in Image Authentication[ C]. Melbourne: ICIS 2007.6th IEEE/ ACIS International Conference on Computer and Information Science,2007:432 - 437.
3Xiaofei Feng, Xingzhong Ji. A Blind Watermarking Method with Strong Robust Based on 2D - Barcode[ C]. Kiev: ITCS 2009,International Conference on Information Technology and Computer Science,2009:452 -456.