The Chinese University of Hong Kong Math 3360: Mathematical Imaging Lecture 3: Stacking operator Prof. Ronald Lok Ming Lui Department of Mathematics, The Chinese University of Hong Kong

Recap:Main tasks in image processing Mathematical technique for imaging (in 1 sentence): TRANSFORM an input image to a better image Mathematically, can be LINEAR: can be NON-LINEAR

Recap: some mathematics! You have learnt from Supplementary note 1: How linear operator to transform an image (to a better image) is defined? (PSF) Shift invariant v.s. convolution Separable operator v.s 1D transformation Main idea:

Main idea For details, please refer to Supplementary note 2! Stacking operator For details, please refer to Supplementary note 2!