A proposed solution for embedding large scale data using spatial method

Abstract

The goal of this study was to develop a high-capacity data embedding system within the DCT domain. A default quantization table is employed to establish fixed mask projection quantization steps. The DCT coefficients of the host image are processed from low to high-frequency bands, with bits embedded across these bands using specially designed Hadamard vectors. The embedding process is outlined in a step-by-step manner. This system can be utilized for data embedding and can be coupled with other encryption techniques to enhance security. The proposed system is noted for its high robustness and security.

Keywords: Image, Data, DCT, Large, Embedding.