| 摘要 |
<P>PROBLEM TO BE SOLVED: To correctly perform the correction of a luminance component with a color temperature change between light-metering for exposure control and imaging. <P>SOLUTION: A white balance (WB) control circuit develops first image data from image data in strobe emission on the basis of a first WB correction value and also develops second image data from image data in strobe non-emission on the basis of a second WB correction value (S700, S701). The WB control circuit calculates the luminance component of external light and the luminance component of strobe light on the basis of the luminance value of the image data in strobe non-emission and the luminance value of the image data in strobe emission (S703, S704). The WB control circuit calculates a synthesis ratio on the basis of the luminance component of the external light and the luminance component of the strobe light, and mixes the first WB correction value with the second WB correction value (S706). The WB control circuit calculates a color temperature correction coefficient on the basis of the WB correction value to correct the light source color of an imaging environment and the WB correction value generated in S706, and corrects the luminance component of synthesized image data (S709). <P>COPYRIGHT: (C)2013,JPO&INPIT |
