Denoising and contrast constancy

Vision Research
W McIlhagga

Abstract

Contrast constancy is the ability to perceive object contrast independent of size or spatial frequency, even though these affect both retinal contrast and detectability. Like other perceptual constancies, it is evidence that the visual system infers the stable properties of objects from the changing properties of retinal images. Here it is shown that perceived contrast is based on an optimal thresholding estimator of object contrast, that is identical to the VisuShrink estimator used in wavelet denoising.

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Citations

Mar 19, 2009·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Susan J Leat, Ming Mei
May 31, 2007·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Ming MeiJeffery Hovis
Apr 17, 2021·Journal of Vision·Amanda C Hardman, Jasna Martinovic
Aug 21, 2021·Scientific Reports·Maria LevDennis M Levi

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