Image processing method using sparse coding, and non-transitory computer-readable storage medium storing image processing program and image processing apparatus
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United States of America Patent
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Sep 6, 2016
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Jun 25, 2015
app pub date -
Dec 17, 2014
filing date -
Dec 20, 2013
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Abstract
The method produces, from a first image, a second image with sparse coding. The method produces, from the first image, a processing intermediate image having a pixel value distribution that a difference among pixel values in a region of the intermediate image is equal to a DC component in a corresponding region of the first image, performs a first process of acquiring, using an AC component in a first region of the intermediate image and a basis produced by dictionary learning, an AC component in a second region, performs a second process of acquiring a difference among pixel values in the second region as a DC component in a corresponding region of the second image, and repeats the first and second processes with changing a position of the first region in the intermediate image to acquire DC components in regions of the second image.
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