Adjust black point of image in Argus

I’m getting images from Argus that are bleached out slightly, which is causing problems in the calibration stage. Looking at the image, it looks like the corners of the image (where the lens can be seen) are being used to set the black point of the image. This is confirmed when you look at a histogram of the image (posted below).

I’ve tried setting the ROI for the AE in argus, but it seems that the exposure is already being set correctly. Are there more knobs I can try turning with the Argus API, or will this require a new ISP?

image

Suppose it could be the lens module problem unable to fix it by tunning.

Thanks

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