Here’s an interesting test case for the algorithm. In 2012 Jaws was released on bluray, after it was restored digitally at 4K resolution from the original negative:
The original negative was in a very poor state:
Although these scans are at low resolution, and rather compressed, we can use the automated color correction algorithm to attempt to restore the colors and detail. These are the results (without manual augmentation):
The colors are not as contrasty as the bluray, but they seem pretty authentic, and the skin tones are less orange, which I personally prefer.