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thelearner
thelearner

Reputation: 1136

Increasing the brightness level for .continuousAutoExposure Mode

I implemented a custom camera with the AVCaptureDevice.Preset.High preset and I'm using .continuousAutoExposure. Everything works as expected, however, the brightness of the picture is sometimes quite low.

I have researched the official documentation and found out, that I am able to set a custom ISO with setExposureModeCustomWithDuration. Unfortunately, doing it this way results in the loss of the wished automation of the exposure.

My question now is, is there a way to increase the overall brightness Percentage of the .continuousAutoExposure Mode? I need it to increase the exposure to around 5% only, but I also need to stick with the .continuousAutoExposure mode.

Upvotes: 3

Views: 1241

Answers (1)

Arun Balakrishnan
Arun Balakrishnan

Reputation: 1502

The trick is to set exposureTargetOffset property of the AVCaptureDevice instance. You need to use KVO to observe changes in the value of captureDevice.exposureTargetOffset and change it to your required exposure level. For more details, check this answer.

Upvotes: 3

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