Lossless Information Hiding in Images

4.2. Overview of Vector Quantization–Based Information Hiding

Since 2000, VQ has been successfully applied to digital image watermarking [21–31]. Since 2005, because of the emergence of lossless information hiding, several scholars have been dedicated to lossless information hiding in VQ-compressed images. In the following two subsections, we overview typical methods related to VQ-based watermarking and VQ-based lossless information hiding.

4.2.1. Overview of Vector Quantization–Based Image Watermarking

Traditional digital watermarking schemes are mainly based on discrete cosine transform (DCT) and discrete wavelet transform. In the past 15 years, many robust image watermarking techniques based on VQ [21–31] have been presented. These algorithms ...