Message Concealment in Digital Image based on Steganography

With the development of computer and expandingits use in different areas of life and work, the issue ofinformation security has become increasinglyimportant. The art of sending and displaying thehidden information has received more attention andfaced many challenges. Digital steganographyexploits the use of a host data to hide a piece ofinformation in such a way that it is imperceptible toa human observer. Wavelet transform that mapintegers to integers allow perfect reconstruction ofthe original image. In this paper, the steganographytechniques are used to conceal the message in thedigital images. Hence, this system embeds themessage bitstream into the LSB's of the integerwavelet coefficients of a true-color image. And thissystem also applies the RSA algorithm to get moreauthentication and protecting content owner’s right.In this proposed system, the original and stegoimagesare difficult to segregate by the human eyes.The performance of the proposed system is evaluatedusing the peak signal to noise ratio (PSNR)