Compressed domain embedding techniques has proven to be resistant against many steganalysis techniques, yet the capacity of the medium is a constraint. The number of non-zero quantized coefficients will be less than the actual number of DCT coefficients, which reduces the capacity of the cover image. This paper proposes a method to embed the message using an extension to hamming code, which was proven to improve the embedding capacity. It also compares the results with existing techniques.
Malathi P. and Meera, M., “An Improved Embedding Scheme in Compressed Domain Image Steganography”, International Journal of Applied Engineering Research, vol. 10, no. 55, pp. 1933-1937, 2015.