Digital image watermarking method based on vector quantization with labeled codewords

作者：Lu ZM^*; Xing W; Xu DG; Sun SH

来源：IEICE Transactions on Information and Systems, 2003, E86D(12): 2786-2789.

• digital watermarking
• vector quantization
• image processing

This Letter presents a novel VQ-based digital image watermarking method. By modifying the conventional GLA algorithm, a codeword-labeled codebook is first generated. Each input image block is then reconstructed by the nearest code-word whose label is equal to the watermark bit. The watermark extraction can be performed blindly. Simulation results show that the proposed method is robust to JPEG compression, vector quantization (VQ) compression and some spatial-domain processing operations.

• 出版日期2003-12
• 单位哈尔滨工业大学