IMAGE SENSING APPARATUS WITH LIGHT EMITTING DEVICE, IMAGE SENSING METHOD OF IMAGE SENSING APPARATUS, AND STORAGE MEDIUM STORING IMAGE SENSING APPARATUS CONTROL PROGRAM

摘要

The peak of a histogram in a first flash preemission and the peak of a histogram in a second flash preemission performed with a light emission amount different from that of the first flash preemission are obtained, and the change ratio of the histogram peak value with respect to a change in flash light emission amount is calculated. By taking this change ratio into consideration, a flash light emission amount for image sensing is calculated. Image sensing is performed by causing the flash to emit light with this image sensing light emission amount.