Abstract— Steganography technique is more popular in recent years due to high level security involved in transferring the data. In image stegnography scheme the secret message is hidden inside a digital image by using different techniques. Least significant bit (LSB) is the commonly used technique foe embedding the information inside a cover image. A three level security scheme has been developed by using MATLAB with digital signature framework. The developed technique has a simpler approach as compared to other complex technique involved in secure transmission of data. The results are analyzed for different images using Peak Signal to noise ratio (PSNR) and the results reveals that the average PSNR value is enhanced by 15.83% compared to the reference values.
Keywords — Image steganography, PSNR, MATLAB, LSB, Digital signature.
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