Blind evaluation of noise characteristics in multi-channel images exploiting inter-channel correlation
Victoriya Abramova, Sergey Abramov, Владимир Васильевич Лукин, Igor Djurović, Marko Simeunović, Benoît Vozel · 2017
A modification of blind method for additive noise variance evaluation based on analysis of characteristics of discrete cosine transform coefficients is described. It takes into account inherent inter-channel correlation of multi-channel images. Numerical simulation results obtained for a large test image database demonstrate essential increase of estimation accuracy due to the proposed modification.