How redundant are luminance and chrominance information in natural scenes?
نویسندگان
چکیده
منابع مشابه
Color and luminance information in natural scenes.
The spatial filtering applied by the human visual system appears to be low pass for chromatic stimuli and band pass for luminance stimuli. Here we explore whether this observed difference in contrast sensitivity reflects a real difference in the components of chrominance and luminance in natural scenes. For this purpose a digital set of 29 hyperspectral images of natural scenes was acquired and...
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Range maps have been actively studied in the last few years in the context of depth perception in natural scenes. With the availability of co-registered luminance information, we have the ability to examine and model the statistical relationships between luminance, range and disparity. In this study, we find that a onesided generalized gaussian distribution closely fits the prior of the range g...
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Form vision is traditionally regarded as processing primarily achromatic information. Previous investigations into the statistics of color and luminance in natural scenes have claimed that luminance and chromatic edges are not independent of each other and that any chromatic edge most likely occurs together with a luminance edge of similar strength. Here we computed the joint statistics of lumi...
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Spatial resolution for color is poor, and reports that V1 simple cell respond to oriented achromatic stimuli have led to the view of two independent processing streams, a high-resolution achromatic form system and a low-resolution unoriented color surface system. Recent data have challenged this view, showing that V1 simple cells respond also to oriented chromatic stimuli [5, 7] and that color ...
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This paper provides a new method to colorize gray-scale images. While the reverse operation is only a matter of standard, the colorization process is an ill-posed problem that requires some priors. In the literature two classes of approach exist. The first class includes manual methods that needs the user to manually add colors on the image to colorize. The second class includes exemplar-based ...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2017
ISSN: 1534-7362
DOI: 10.1167/17.10.658