SKIN TONE ENHANCEMENT FOR GHOST IMAGES
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United States of America Patent
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Issued Date -
Oct 12, 2017
app pub date -
Apr 11, 2017
filing date -
Apr 11, 2016
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Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing skin tone in a ghost image are disclosed. In one aspect, a method includes the actions of receiving a color image. The actions further include converting the color image to a grayscale image. The actions further include generating a foreground image by removing background pixels from the grayscale image. The actions further include determining a foreground pixel value range of the pixel values of the foreground image. The actions further include generating a transfer function based on the foreground pixel value range, a minimum pixel value, and a maximum pixel value. The actions further include generating a transferred image by applying the transfer function to each pixel of the foreground image. The actions further include generating a monochrome image of the transferred image.
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