Research Article

An Improved Information Hiding Method Based on Sparse Representation

Table 2

Embedding capacity comparison results.

AlgorithmCover image (pixel)Secret information (bit)bpp

Vatsa et al. [27]1024 × 76810000.0013
Vatsa et al. [28]512 × 512163840.0625
Shih and Wu [29]512 × 512 × 3860160.1094
Our method512 × 5121420840.5420