Self-Authentication Of Natural Color Images In Pascal Transform Domain

This paper proposes a self-authentication scheme for color images, using a fragile data hiding method based on the Discrete Pascal Transform (DPT). The main contribution of this work is in the development of a scheme that is able to detect whether a color image has been tampered or not, to locate the exact tampered position, and to attempt to restore the original image content. This is achieved by embedding a low bit-depth scaled version of the image itself, resulting in very good stego image quality and satisfactory restoration.

• Type: Conference
• Year: 2009
• Where: DSP2009
• Authors: E. E. Varsaki, V. Fotopoulos and A. N. Skodras
• Keywords: Data Hiding, Discrete Pascal Transform, Self-authentication