Hide Secret Information in Blocks: Minimum Distortion Embedding
This work addresses the need for improved steganographic techniques with reduced distortion for secure information hiding, but it appears incremental as it builds on existing DCT-based methods.
The paper tackles the problem of minimizing distortion in steganographic images by proposing a new encoding algorithm that optimizes DCT rounding error, resulting in less distortion compared to existing methods like the F5 algorithm.
In this paper, a new steganographic method is presented that provides minimum distortion in the stego image. The proposed encoding algorithm focuses on DCT rounding error and optimizes that in a way to reduce distortion in the stego image, and the proposed algorithm produces less distortion than existing methods (e.g., F5 algorithm). The proposed method is based on DCT rounding error which helps to lower distortion and higher embedding capacity.