Do I need radiometric calibration of RGB imagery in Pix4D

I hope someone can help with this! My team has acquired RGB imageries with Sony Camera mounted on eBee UAV. We geottaged through e-Motion software and post-processed through Pix4D. I have problems with the output orthomosaic because it looks funky (see attached). I was wondering if the RGB imageries need special radiometric calibration or if the imageries are auto-calibrated during the post-processing. Is there anyone experienced with this ? Is there a need to conduct a manual radiometric calibration on the RGB imageries, given that the Camera sensor is recognized within the post-processing workflow? Is there a potential remedy, given that we did not take any calibration picture with this camera?

Thank you.

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