| 摘要 |
Systems, methods, and devices for obtaining a properly exposed strobe-illuminated image are provided. One method for doing so may include, for example, gathering image capture statistics during a first period when a strobe is not emitting light and during a second period when the strobe emits a preflash. These image capture statistics may include distinct image capture control statistics and luma values associated with the periods. Final image capture control statistics then may be determined based at least in part on the first luma value normalized to the first image capture control statistics and the second luma value normalized to the second image capture control statistics. Thereafter, the final image capture control statistics may be used to capture a properly exposed strobe-illuminated image when the strobe emits a main flash. |
| 主权项 |
1. A method comprising:
gathering, using data processing circuitry, first image capture statistics based at least in part on first image data captured by image capture circuitry while a strobe is not emitting light; emitting a preflash using the strobe; gathering, using the data processing circuitry, second image capture statistics based at least in part on second image data captured by the image capture circuitry while the preflash is being emitted; determining, using the data processing circuitry, first main flash control statistics based at least in part on the first image capture statistics and the second image capture statistics; emitting a main flash using the strobe, wherein the main flash is configured to endure across at least two frames of image data captured by the image capture circuitry; capturing, using the image capture circuitry, a first main flash frame of image data while the strobe is emitting the main flash, based at least in part on the first main flash control statistics; gathering, using the data processing circuitry, third image capture statistics based at least in part on the first main flash frame of image data; determining, using the data processing circuitry, second main flash control statistics based at least in part on the third image capture statistics; and capturing, using the image capture circuitry, an image based at least in part on the second main flash control statistics while the strobe is emitting the main flash. |
