| 摘要 |
A method for controlling illumination of an object being photographed includes generating and sending an invitation signal to a number of secondary electronic devices to join a group for photographing the object, generating and sending a photosensing signal to each of the secondary electronic devices in the group to detect an illumination value of the object, focusing an image of the object and detecting an illumination value of the object, detecting a distance value between the object and the primary electronic device, detecting a distance value between the object and each of the secondary electronic devices, and calculating a required flash driving current and a required flash duration of the primary electronic device and each of the secondary electronic devices and a required exposure time for photographing the object. The object is photographed by the first electronic device. |
| 主权项 |
1. A method of capturing a digital image of an object by a primary electronic device having a camera and a first flash, the method comprising:
generating and sending a request, by the primary electronic device, to one or more secondary electronic devices to detect an illumination value of the object, each secondary electronic device comprising a second flash; focusing the camera of the primary electronic device on a capturable image of the object; detecting, by the primary electronic device, an illumination value of the object and a distance value between the object and the camera; generating and sending, by the primary electronic device, a request to each of the one or more secondary electronic devices to detect a distance value between the object and the secondary electronic device; obtaining, by the primary electronic device, from each of the one or more secondary electronic devices the illumination value detected by the secondary electronic device, and the distance value between the object and the secondary electronic device; calculating, by the primary electronic device, based at least in part on the illumination value and the distance value detected by the primary electronic device and the illumination value and the distance value detected by each of the one or more secondary electronic devices, an optimal flash driving current value and an optimal flash duration for the first flash and each of the one or more secondary electronic devices, and an optimal exposure duration for the primary electronic device camera; generating and sending, by the primary electronic device, a flash command signal directed to each of the secondary electronic devices to produce a flash based on the optimal flash driving current value and the optimal flash duration as calculated for each of the one or more secondary electronic devices, while the first flash produces a flash based on the calculated optimal flash driving current value and the optimal flash duration for the primary electronic device for capturing the image of the object for the calculated optimal exposure duration. |
