International Journal of Academic Library and Information Science
 

 International Journal of Academic Library and Information Science Vol. 2(7), pp. 73–78, August, ISSN: 2360-7858 ©2014 Academic Research Journals

Full Length Research

Encryptional Hiding Image in Image using Wavelet Transform

Arwa H. Mohammed Taqi.

Department of Electrical and Electronics Engineering, Karbala University, Karbala /Iraq.

E-mail: Eng_ar_2009@yahoo.com.   Phone number: 009647706456520.

Accepted 4 August 2014

This research implied the algorithm of hiding a gray scale image into another gray scale image. The data elements of the secret image (Which is important image of any application) were place within Discrete Wavelet Transform (DWT) subspaces of the cover image (unimportant image) after simple treatment. The resulting image after the hiding process was called stego_image. The secret image can be encoded by any coding methods before hiding it in the cover image, which will increase the security of the hiding process. Huffman code was efficient coding in this process. Each bit of Huffman code of the secret image was embedded in the high frequency coefficients of the cover image, and the performance of hiding process algorithms was in terms of PSNR and RMSE. For example the PSNR of hiding one secret image in a cover one was 35.914 and RMSE was 16.657.

Keywords: DWT; Hiding system; Huffman codes; Encryption; Image proceesing, steganography.



 

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