Patent ID: 8134762
Filing Date: 2012-03-13
Classification: G06K,G06T

Abstract:
1. A non-transitory computer readable medium encoded with a computer program code for implementing a method for determining an image characteristic in a digital image, said method comprising: a) determining a first plurality of pixels in a digital image; b) determining a first histogram of values of a first-channel for said first plurality of pixels; c) identifying, from only data in said first histogram, a first peak in said first histogram, wherein said first peak is identified by a first-channel starting value and a first-channel ending value; d) determining a second histogram of values of a second-channel for a second plurality of pixels in said digital image, wherein said second plurality of pixels is limited to pixels, from said first plurality of pixels, with a first-channel value between said first-channel starting value and said first-channel ending value; e) identifying, from only data in said second histogram, a second peak in said second histogram; and f) identifying a characteristic of said image with said first peak and said second peak.