How can I adjust shutter speed of a raspberry pi camera using OpenCV?

asked 2018-10-03 04:39:54 -0600

I need to take pictures of laser light and process the pictures to crate sensing system of actuator. So I thought that I can take noiseless pictures of laser light by setting shutter speed higher.

After that, I confirm I can take noiseless pictures in high-speed shutter, but I don't know how to adjust shutter speed using OpenCV.

Can any one tell me the solution strategy?

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answered 2018-10-03 14:59:59 -0600

kbarni

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updated 2018-10-03 15:06:20 -0600

OpenCV uses the V4L driver for camera control, and I'm not sure that these advanced features have been implemented in the Raspberry Pi camera V4L driver.

I recommend using the picamera Python package, it supports very advanced features for the Raspberry Pi camera (shutter speed, ISO, frame rate etc...)

BTW, as a general rule: if you can't use some advanced feature of a camera in OpenCV, it's the best to use the official SDK/camera driver and convert the captured frame to OpenCV Mat.

Same for exotic image formats, like multichannel or multipage TIF files.