Auto white balance apparatus and method in a digital camera with a strobe

摘要

There are provided an auto white balance apparatus and an auto white balance method in a digital camera with a strobe. The digital camera has an image sensor for capturing external images and a flash module. The flash module stops flashing when a first voltage signal representing a detected brightness of the flash module is larger than a reference voltage signal. An exposure time is determined based on brightness of the image captured by the image sensor. The flash module detects brightness based on the exposure time for establishing a second voltage signal. A white balance adjustment is performed based on a ratio of the reference voltage signal and the second voltage signal.