Question about setting the bit depth of the USB camera

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Wei Han
Wei Han 2018-11-28
评论： Brian Hu 2018-12-3
I can set the bit depth to 8 or 12 bit if I use the third party software (ToupSky) which support my camera. However, there is only one available option in matlab image acquisition toolbox, which is 8 bit. I have installed all the driver support package for this toolbox. My camera is BRESSER deep sky camera. Any suggestions if I want to use 12 bit in MATLAB?

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Brian Hu
Brian Hu 2018-12-3
Please refer to the following link for an example to change the bit depth to your camera's native bit depth using the image Acquisition Toolbox.
https://www.mathworks.com/matlabcentral/answers/351901-how-can-i-log-frames-to-disk-and-show-a-live-view-from-from-a-10-bit-depth-camera
  2 个评论
Wei Han
Wei Han 2018-12-3
Hi. Thank you for your reply. But there is only one format available when I use the preview function, it is RGB24_1920x1080. I think it should be RGB36 if it is 12 bits. And after I change RGB24 to RGB36 and try to run it, the error is like 'The FORMAT specified is not supported by this device. See IMAQHWINFO(ADAPTORNAME)'.
Brian Hu
Brian Hu 2018-12-3
In the documentation link, there is a note under the page for the preview function:
"The Image Acquisition Toolbox™ Preview window and the Preview window that is built into the Image Acquisition Tool support the display of up to 16-bit image data. The Preview window was designed to only show 8-bit data, but many cameras return 10-, 12-, 14-, or 16-bit data. The Preview window display supports these higher bit-depth cameras. However, larger bit data is scaled to 8-bit for the purpose of displaying previewed data. If you need the full resolution of the data, use the getsnapshot or getdata functions."
(https://www.mathworks.com/help/imaq/preview.html)
It seems that if you wish to use the preview function, the Image Acquisition Toolbox only supports up to 8-bit depth.

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