So the reference slide is being scanned, then the resulting digital image (assuming a properly calibrated monitor) is compared to the slide to make sure that what is seen in the monitor matches the slide perfectly? After this is dialed in, we can assume that anything going through the scanning process is accurate, too. I think I have it.
Thanks for the explanation!
Almost exactly! The color calibration slide has a digital counterpart, so you can directly compare the scan to the digital version, and calibrate algorithmically. So, there’s no need for a calibrated monitor.