id: 05982498
dt: j
an: 05982498
au: Chrysochos, E.; Fotopoulos, V.; Skodras, A.N.
ti: A new difference expansion transform in triplets for reversible data
    hiding.
so: Int. J. Comput. Math. 88, No. 10, 2016-2025 (2011).
py: 2011
pu: Taylor \& Francis, Abingdon
la: EN
cc: 
ut: 3C2B; difference expansion; lossless data hiding; triplets; DCT
ci: 
li: doi:10.1080/00207160.2010.539210
ab: Summary: Difference expansion (DE) has been widely used for reversible data
    hiding. In this paper, a novel transform which embeds two bits of
    information in a triplet of coefficients is presented. This transform
    can be applied in spatial or frequency domains and induces minimum
    distortion to the initial data or coefficients. The proposed method
    outperforms all similar DE methods using triplets in terms of
    computational cost, visual quality and bitrate.
rv: