the bounds of step-structure and dirac-structure are distinguished by using modular-angle-separated wavelet transform
or combining with scale-independent algorithm
thus obtaining the bounds of the step-structure.In order to filtrate the smaller point of the wavelet coefficient needs to chose threshold value of peak value used former algorithm
However
the singularity of the edge in a image is not uniform
the faintness edge will be filtered with the non-uniform of gray-scale and no...