Image Information Hiding via DCT Block-Based Gray Image Steganography with Histogram
Introduction
Image steganography conceals secret data within a cover image. This method utilizes the Discrete Cosine Transform (DCT) and histogram manipulation to embed information into grayscale images, aiming for robustnes and imperceptibility.
Methodology
The proposed technique involves the following key steps:
DCT Block Processing: The cov ...
Posted on Wed, 26 Aug 2026 16:30:02 +0000 by po