| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus suitable to an environment existing a flicker light source by performing light source determination with high accuracy because color temperature of a lighting having flicker varies in each type, that is, the color temperature is completely different among the so-called white fluorescent lamp, electric bulb color fluorescent lamp and neutral white fluorescent lamp regardless of the same light emitting means, which in a method for estimating color temperature on the basis of a color ratio, restoration is not easily performed from flicker-free even though a threshold of a change amount of the color temperature is estimated large. <P>SOLUTION: A change in a light source is selected by respectively comparing the past of a color signal level obtained from the imaging apparatus with the present of the color signal level, and flicker-free is released when the color signal level changes by a fixed amount or more. When flicker is redetected just after releasing the flicker-free, a threshold of color signal level displacement is changed so as to prevent erroneous determination from being repeated. <P>COPYRIGHT: (C)2010,JPO&INPIT |
