Algorithms - Feature extraction - Image analysis - Security of data - Vector quantization;
D O I:
10.1049/el:20000876
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 [电气工程];
0809 [电子科学与技术];
摘要:
A vector-quantisation (VQ)-based watermarking method is presented which utilises the codebook expansion technique. This method is efficient, provides enhanced security and the watermarked image is robust against the effects of VQ compression. Moreover, the watermark extraction can be performed without the original image. Experimental results are presented which demonstrate the effectiveness of this algorithm.