PHOTOGRAPHY METHOD USING PROJECTING LIGHT SOURCE AND A PHOTOGRAPHY ELEMENT THEREOF
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United States of America Patent
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Jan 14, 2016
app pub date -
Jul 10, 2015
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Jul 10, 2014
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Abstract
A photography element and a photography method with a projecting light source. An illuminating light emitted by the projecting light source illuminates an object to be detected. A camera photographs the object to produce a picture. A control module including a picture analyzing and processing module and a light compensation module adjusts color or brightness of the illuminating light, and presets threshold for grayscale values of pixels of the picture. The picture analyzing and processing module compares the grayscale values with the threshold. For a partial region of the picture where grayscale values are not within the threshold, the light compensation module adjusts a partial of the projecting light source to illuminate a corresponding partial region of the object so that the projecting light source emits another illuminating light to re-illuminate the object. The camera re-photographs the object until every pixel meets the threshold to produce a clear picture.
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