A DWT-based color image steganography scheme

A novel text cryptosystem is proposed. The secret information is hidden into a publicly accessed color image by a quantization-based strategy, so the transportation of the secret information will not attract the attention of illegal eavesdropper. With our approach, the secret information is embedded in the wavelet domain of every chrominance component, so the hiding capacity is larger than the similar steganography software. The embedded sequence can be reliably extracted without resorting to the original image. Simulation results show that the proposed method is robust against commonly used image processing techniques.