| 摘要 |
PROBLEM TO BE SOLVED: To shorten colorimetric data sampling time by providing a photometry and colorimetry means obtaining necessary information for photometric processing and the necessary information for light source kind discrimination in parallel. SOLUTION: A multi-division photometry device 1 purposing outer light luminance measurement performs light source kind discrimination by a multi- division photometric sensor. A photometry and colorimetry device 2 which is the module of CPU control outputting a photometric value and a colorimetric result by using luminance output from the multi-division photometry device 1 is provided. Then, light source flicker must be smoothed for the case that photographing is performed under an artificial light source such as at the inside of a room so as to obtain the photometric value, and photometric operation is performed for plural times for respective photometric areas so as to obtain the average of them. In the case of performing colorimetric detection, the photometric operation must be made for the plural times for the purpose of detecting the flicker of the artificial light source. The colorimetric sampling data obtained is analyzed by the processing of Fourier transform or the like, so that a light source kind is discriminated. |
