Hide Secret Information in Blocks: Minimum Distortion Embedding

In this paper, a new steganographic method is presented that provides minimum distortion in the stego image. The proposed encoding algorithm focused on DCT rounding error and optimized 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 helped to lower distortion and higher embedding capacity.