A steganographic method for images by pixel-value differencing
Pattern Recognition Letters
On the Hardness of 4-Coloring a 3-Colorable Graph
COCO '00 Proceedings of the 15th Annual IEEE Conference on Computational Complexity
A high quality steganographic method with pixel-value differencing and modulus function
Journal of Systems and Software
Analyses of Pixel-Value-Differencing Schemes with LSB Replacement in Stegonagraphy
IIH-MSP '07 Proceedings of the Third International Conference on International Information Hiding and Multimedia Signal Processing (IIH-MSP 2007) - Volume 01
Review: A review on blind detection for image steganography
Signal Processing
An adaptive steganographic method based on the measurement of just noticeable distortion profile
Image and Vision Computing
New image steganographic methods using run-length approach
Information Sciences: an International Journal
Adaptive Data Hiding in Edge Areas of Images With Spatial LSB Domain Systems
IEEE Transactions on Information Forensics and Security
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Graph coloring has been applied in a variety of applications, but not for data hiding. Therefore, in this paper, we are proposing two graph coloring-based data hiding schemes that embed secret data in spatial domain of gray scale images. The main idea of our schemes is to use a graph, in which every vertex corresponds to a pixel pair, to hide data by replacing a pair of pixels of one color with a pair of pixels of a different color, with every color corresponding to some bits of the secret message. The performance of the proposed schemes has been evaluated by a joint evaluation of the imperceptibility of the images they produce and their embedding capacity. Also, the validity of the proposed schemes has been proven by comparing them with some other schemes.