LSB Steganography Based Reversible Data Hiding

-This paper introduces a new, principled approach to least significant bit (LSB) steganography in digital signals such as images. It is shown that privacy protection of medical images with information using histogram shifting based reversible data hiding.First of all, the patient’s privacies need to be preserved.Therefore, embedding secret data into the medical images would be one of the useful methods for protecting the privacies. After data embedding, the output image should be as similar as its original counterpart, and medical doctors may lead to proper treatment by using the images with hidden data. Later on, both the original image and the hidden data can be perfectly recovered with the algorithm corresponding to the embedding scheme.Finally improving the efficiency and speedof calculation by using FPGA pipelined architecture Keywords--Image Steganography, Information Hiding, LSB Technique.