How to design digital image denosing filters with good ability of preserving edge and texture information is an international and popular issue in image processing. The unified filtering mechanism of digital TV filter (DTV) and digital bilateral TV filter (DBTV) is described firstly

and then a novel non-local adaptive bilateral filtering mechanism is established. The definition of pixel’s short dependence and long dependence measures are given

and a new non-local digital TV filter (NLTV) is proposed which can deal with Gaussian noise and impulse noise respectively. Experiments show that our proposed algorithm has quite good ability of noise suppressing as well as edge and texture preserving.