| 摘要 |
It includes a face detection unit (32) that acquires an image from a camera (2) and detects a person's face from the image, a region division unit (33) that acquires an image from the camera (2) and divides an imaging region of the image, a luminance calculation unit (34) that calculates luminance of the person's face detected by the face detection unit (32) and luminance of each divided region obtained by dividing by the region division unit (33), and a diaphragm adjustment information calculation unit (35) that obtains the divided region having a difference between the luminance of the person's face and the luminance of the divided region which is larger than a predetermined value, calculates a region excluding the obtained divided region as a diaphragm adjustment region of an imaging unit (21), and outputs the obtained diaphragm adjustment region as diaphragm adjustment information to a diaphragm adjustment unit (22) of the camera (2). |
