Patent ID: 7184079
Filing Date: 2007-02-27
Classification: H04N

Abstract:
1. An electronic camera comprising: an image-capturing device that captures a subject image passing through a photographic lens and outputs an image-capturing signal; a chromaticity detection unit that detects chromaticity of the subject by using the image-capturing signal; a calculation unit that calculates first and second values representing color temperature or mired value by using different algorithms, each of which corresponds to respective gains, based upon the chromaticity detected by the chromaticity detection unit; a scene analysis unit that analyzes a scene to be photographed, a weighting value calculation unit that calculates first and second weighting values, each for the first and second values representing color temperature or mired value, based on results of analyzing the scene; a gain calculation unit that calculates a white balance adjustment gain for the image-capturing signal based upon the first and second values representing color temperature or mired value to which the first and second weighting values have been applied respectively; and a white balance adjustment unit that performs a white balance adjustment by applying the white balance adjustment gains to the image-capturing signal.