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Peter Bex; Contrast perception in natural scenes. Journal of Vision 2008;8(17):31. doi: 10.1167/8.17.31.
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Contrast sensitivity is routinely measured with sine wave grating stimuli presented on homogenous grey backgrounds, whereas natural images are composed of a broad range of spatial and temporal structure. I examine how contrast sensitivity varies with the context in which it is measured in an effort to extend our band-pass channel-based models of visual processing for application in natural conditions.
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