A Secure Color Image Steganography In Transform Domain

TL;DR

This paper introduces a novel color image steganography method using DWT and IWT that conceals images and keys with high fidelity, ensuring no visual difference and superior PSNR compared to existing techniques.

Contribution

It presents a new steganography approach combining DWT and IWT for secure, high-quality image hiding that outperforms similar methods in PSNR.

Findings

Stego images are visually indistinguishable from cover images.

High PSNR values demonstrate the method's effectiveness.

Compared to existing techniques, the proposed method yields better image quality.

Abstract

Steganography is the art and science of covert communication. The secret information can be concealed in content such as image, audio, or video. This paper provides a novel image steganography technique to hide both image and key in color cover image using Discrete Wavelet Transform (DWT) and Integer Wavelet Transform (IWT). There is no visual difference between the stego image and the cover image. The extracted image is also similar to the secret image. This is proved by the high PSNR (Peak Signal to Noise Ratio), value for both stego and extracted secret image. The results are compared with the results of similar techniques and it is found that the proposed technique is simple and gives better PSNR values than others.