Hello ppant,
Currently you need to add meta information to the cameras related to the calibration images. I've posted the example previously in another thread:
albedo = {"Blue": "0.65952", "Green": "0.67788", "Red": "0.67718", "NIR": "0.66653", "Rededge": "0.6223266"} #reflectance values for the panel for each band
for camera in chunk.cameras:
if camera.group.label != "Calibration images":
continue
for plane in camera.planes:
plane.meta["ReflectancePanel/Calibration"] = albedo[plane.sensor.bands[0]]