Classification of image degradation using Riesz transform

Evaluation of Blur and Gaussian Noise Degradation in Images Using Statistical Model of Natural Scene and Perceptual Image Quality Measure

“…Riesz transform [14], [15] connects properties of wavelet transform by means of invariance to translation and dilatation and works with steerable pyramid wavelet through rotation invariance. The selection of filter coefficients is more flexible and usually chosen for specific application.…”