Patent ID: 8294785

Claim:
A method for adjusting photosensitiveness of a digital camera, wherein the digital camera comprises a flash lamp and a photographing module, comprising: capturing a live view image corresponding to a plurality of objects by the photographing module; enabling the flash lamp to emit a pre-flash light, and capturing a pre-flash image corresponding to the objects by the photographing module; calculating a reflection image through the live view image and the pre-flash image; judging appearance positions of the objects in the pre-flash image through reflection information of all position points on the reflection image; performing a recognition procedure according to the appearance positions, so as to find image information that presents the objects in the pre-flash image; determining whether the objects are at more than two different depths of field (DOFs) according to the image information of the objects; and when the objects are at more than two different DOFs, adjusting current photosensitiveness of the photographing module.