Title of article
Data Hiding Method Based on Graph Coloring and Pixel Block‘s Correlation in Color Image.
Author/Authors
Ghadimi, G Dept. of Electrical Engineering - Emam Ali University, Tehran , Nejati Jahromi, M Dept. of Electrical Engineering - Shahid Sattary Aeronautical University of Science and Technology, Tehran , Ghaemi, E Dept. of Electrical Engineering - Ahar University, Ahar , Heydari, A. H Department of Electrical and Electronic Engineering - Amirkabir University of Technology, Tehran
Pages
8
From page
123
To page
130
Abstract
An optimized method for data hiding into a digital color image in spatial domain
is provided. The graph coloring theory with different color numbers is applied. To enhance the
security of this method, block correlations method in an image is used. Experimental results show
that with the same PSNR, the capacity is improved by %8, and also security has increased in the
method compared with other methods. In the correlation block-based image method, data hiding
capacity of the host image varies according to image type and defined threshold level. In the
proposed algorithm, during graph explanation, independent pixels placed side by side were colored.
Then, based on “pixel block correlation data hiding” process is done. This method grows the
security and capacity of hiding process. Besides, this increases the effects of image format and
correlation threshold on security and capacity.
Keywords
Data hiding , Graph coloring , Correlation , Threshold , Security , Color number
Journal title
AUT Journal of Electrical Engineering
Serial Year
2017
Record number
2704188
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