| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that a distance between a lens and an image sensor is made close to each other accompanying the miniaturization, and the dependence on an incident angle of light to a color separation filter can not be neglected, consequently, color temperature shading causes degradation of the image quality in an imaging signal. <P>SOLUTION: The image input device is provided with the color separation filter 12 which is arranged between an optical lens 11 and the image sensor 13; a memory means 36 which temporarily stores the imaging signal by the image sensor; a color temperature measuring means 32 which measures a color temperature of the imaging signal from the image sensor for each measurement area generated by arbitrarily dividing the whole area of the image sensor; a measurement result storage means 33 which temporarily stores the color temperature measurement results by the color temperature measuring means; and a color temperature correction means 34 which corrects the color temperature of the imaging signal for each divided correction area, on the basis of the color temperature measurement results for each area by using the imaging signal from the memory means and the color temperature measurement results from the measurement result storage means as input. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
