<p style='text-indent:20px;'>Retinex theory is introduced to show how the human visual system perceives color and illumination effect such as Retinex illusions, medical image intensity inhomogeneity shadow etc.. Many researchers have studied this ill-posed problem based on framework of variation energy functional for decades. However, best our knowledge, existing models via sparsity nonco...

constant rate of strain (crs) consolidation is a rapid test method used for determination of compressibility of clayey soils. in a crs test, the appropriate strain rate is selected based on pore water pressure ratio, i.e. the ratio of pore pressure to total stress. in the present study, to investigate the effect of strain rate on variation of relative pore water pressure, four different clay sa...