| 摘要 |
PROBLEM TO BE SOLVED: To obtain an image whose quality is satisfactory by properly correcting flare by a simple configurations. SOLUTION: The cumulative frequency distribution(histogram) of a luminance signal inputted from a CCD 3 is prepared by a histogram preparing part 42, and the histogram of the luminance signal prepared by the histogram preparing part 42 is compared with correction characteristics preliminarily measured according to characteristics of a photographic optical system 2 or the like, and the correction value of a black level is acquired by a black correction value calculating part 435. The image signal inputted from the CCD 3 is black-corrected by the correction value of the black level acquired by the black correction value calculating part 435 by an image processing part 43 so that any black floating can be prevented from being generated (true black image) in the photographic image. COPYRIGHT: (C)2006,JPO&NCIPI
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