Lossless Data Hiding Using LSB Method

A lossless (reversible) data hiding (embedding) method inside an image (translating medium) presented in the present work using LSB (least significant bit) technique which enables us to translate data using an image (host image), using a secret key, to be undetectable without losing any data or without changing the size and the external scene (visible properties) of the image, the hiding data is then can be extracted (without losing) by reversing the encoding process , knowing and using the same secret key. This method tested by using two images and by using several embedding bit rates , the result is that the host image undistinguishable from the stego images , then we used (PSNR) and (MSE) methods to fined the difference values between the host image and the stego images.