曝光¶
描述
This effect/filter adjusts the exposure of the image or video stream.
參數
參數 |
數值 |
描述 |
|---|---|---|
曝光 |
浮點數 |
Set the exposure correction in EV[1]. Allowed values are from -3.0 to 3.0 EV, default is 0 EV. |
半徑 |
浮點數 |
Set the black level correction. Allowed values are from -1.0 to 1.0, default is 0. |