Image steganography with using QR code

Abstract

This article deals with digital representation of images as well as presents design and implementation of message security of data represented in images by using the Quick Response (QR) code encryption technique. In the proposed solution, the QR code is written in the least significant bit (LSB). In our presented case the simulations are performed in MATLAB development tool. The results are presented by multiple stego images using multiple cover images and secret messages that are embedded into them. The motivation is ever-increasing demands on the security of hidden data represented in images. The proposed solution is evaluated by parametric values as Peak signal-to-noise ratio (PSNR), mean squared error (MSE) and subsequently compared with well-known proposed solutions. The aim of this article is to design a solution that will come with high level of security and at the same time with lowest possible level of perceptibility. The system can be used to secure data in the medical field, respectively in the protection of copyrighted data.