[GigEV] `Laser`/`LED` texture source bit depth

bmegli commented 1 year ago

As documented, Intensity is always delivered as GigEV/GenICam Mono16but real data inside varies.

https://github.com/photoneo-3d/photoneo-cpp-examples/blob/ffd76804b863c10b9dd1164525740e29c4320192/GigEV/README.md?plain=1#L114-L116

Can any assumption be made for Laser and LED?

Like 10 bit depth, 12 bit depth grayscale, etc.

Main reason for question

if there is known bit depth it can be re-scaled blindly to other bit depths on user side in simple use cases
as opposed to autocontrast or focusing on depth range window for visualization

patrikdaniel commented 1 year ago

The Intensity (Texture) is by default an 11-bit image (values in the range 0 - 2047).

However, for Texture source = Laser (as opposed to LED), the image tends to behave more like a 10-bit image (pixels get saturated already at lower values than 2000).

bmegli commented 1 year ago

Thanks!

I had trouble finding this information in documentation, maybe I missed some resource.

It would be helpful if it was at least mentioned on GigEV overview or in GenICam xml.

Unless no assumptions should be made in general case.

Kind regards.

photoneo-3d / photoneo-cpp-examples

[GigEV] `Laser`/`LED` texture source bit depth #5