STEGANOGRAPHY IMAGE IN COLOR IMAGE USING WAVELET TRANSFORM
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 4, Issue 6
Abstract
The Discrete Wavelet Transform is a relatively recent and computationally efficient technique in computer. The w avelet analysis is advantageous as it performs loca l analysis and multi - resolution analysis system . Discrete wavelet transform (DWT) technique has been used for steganography image . Though steganography is a old method of hiding information behind some object, but still this is very effective for secure data transfer and data exchange. A method for image steganography has been discussed, utilising basics of discrete wavelet transform. The cover image is divid ed into higher and lower frequency sub bands and data is emb edded into higher frequency sub bands. This is proved by the high Peak Signal to Noise Ratio ( PSNR ), value for both steganography and extracted secret. The results are compared with the results is similar techniques and it is found that the proposed technique is simple and gives better Peak Signal to Noise Ratio ( PSNR ) values than others.
Authors and Affiliations
Anita Vyas , Prof.
Keywords
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