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MityCAM-120MXS 12bit two least significant bits always 0

Added by Doug MacEwen almost 4 years ago

Hello,

I have been working with the MityCAM-120MXS in with the BayerRG12p pixel format (over USB) and noticed that the pixel values increment by 4. I dug around a little and it appears that the two least significant bits are never used, essentially making the output 10bit. I checked my implementation against the GenTL viewer provided by Critical Link and noticed that the pixel values increment by 4 there as well.

I was hoping that you could provide some guidance on whether this is expected behavior, I miss configured the camera, or if (and how) I should file a bug report. Let me know if there is any more information I can provide.

Thank you!
Doug


Replies (2)

RE: MityCAM-120MXS 12bit two least significant bits always 0 - Added by Michael Williamson almost 4 years ago

Hi Doug,

The 120 MP Canon sensor is really a 10 bit sensor, but the MityCAM camera framework does not support 10 bit-per-pixel output packing at this time, so we packed the 10 bits into a 12 bit word with a left shift so that a full scale signal would result in a full scale output on the display. The bottom two bits will be zero.

I am sorry for the confusion.

-Mike

RE: MityCAM-120MXS 12bit two least significant bits always 0 - Added by Doug MacEwen almost 4 years ago

Good to know! No problem, I just wanted to make sure I wasn't missing something. Thanks!

On May 5 2020, at 9:31 am, wrote:

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