A Novel Approach of Color Image Hiding using RGB Color planes and DWT

TL;DR

This paper introduces a wavelet-based steganographic method for color images that embeds secret images into cover images using DWT and alpha blending, achieving high security and imperceptibility.

Contribution

It presents a novel technique combining DWT and alpha blending for secure color image hiding, enhancing imperceptibility and security over existing methods.

Findings

Stego images maintain high visual quality with minimal distortion.

The method provides high security against unauthorized extraction.

Embedding and extraction depend on alpha values for flexibility.

Abstract

This work proposes a wavelet based Steganographic technique for the color image. The true color cover image and the true color secret image both are decomposed into three separate color planes namely R, G and B. Each plane of the images is decomposed into four sub bands using DWT. Each color plane of the secret image is hidden by alpha blending technique in the corresponding sub bands of the respective color planes of the original image. During embedding, secret image is dispersed within the original image depending upon the alpha value. Extraction of the secret image varies according to the alpha value. In this approach the stego image generated is of acceptable level of imperceptibility and distortion compared to the cover image and the overall security is high.