METHODS OF SAMPLING PIXELS OF IMAGE AND DETERMINING SIZE OF AN AREA OF IMAGE
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United States of America Patent
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May 25, 2017
app pub date -
Nov 25, 2015
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Nov 25, 2015
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The present disclosure relates to a method of sampling pixels of an image. The method includes: determining a target area on the image; and sampling pixels from the target area, comprising: sorting background pixels based on a first spectral feature and divide them into a first number of groups; sorting target pixels based on a second spectral feature and divide them into a second number of groups; sampling background pixels from each of the first number of groups; and sampling target pixels from each of the second number of groups.
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