| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image processor for highly precisely judging whether or not the rays of light are emitted to a portion of an object. <P>SOLUTION: This image processor for judging an optical environment with respect to an object from a pickup image is provided with an edge detection means for detecting the edge of an object based on the pickup image and a judgement means for judging that the rays of light shine on a portion of an object when a luminance difference between comparison positions based on the edge of the object detected by the edge detection means is a threshold or more. The judgement means judges that the rays of light shine on a portion of the object when the difference of a luminance value between the neighborhoods of a terminal part as the symmetry of the object regions based on the edge detected by the edge detection means is a threshold or more, and when the difference of the number of pixels as the edge at the comparison position based on the edge of the object detected by the edge detection means is a threshold or more, it is suitably judged that the rays of light shine on a portion of the object. <P>COPYRIGHT: (C)2008,JPO&INPIT |
