SECURITY BY AN IMPROVED MULTI LEVEL IMAGE STEGANOGRAPHY

Abstract

Image security is becoming increasingly important among humans as it is shared on various internet social media platforms, and the authenticity of images is one of the primary tasks for which creators have put in significant effort to create or capture, especially if there are copyright laws involved. As a result, distributed and shared photos must be validated with additional information that will never compromise image quality and is difficult to guess or hack. Several techniques were used to improve security levels in image steganography, and multi-level security was also achieved. In the same spirit, this work is also attempting to develop a novel method of integrating information with images that have multiple security levels. The proposed methodology was evaluated on three different photos, with each image treated with a varied text length. The stego images were examined using mean square error (MSE) and peak signal to noise ratio (PSNR) to compare to earlier methods and demonstrate their performance. In this paper, presents a highly secure image steganography technique with multiple levels of encryption.