It does, and it’s one reason why I’m not altogether thrilled with the idea of eliminating the color tints of DeEd 2.5 and making everything look neutral.

Mike V made this point back when he first introduced us to the idea a few years ago: in order to get back the original colors of the movie, you have to view it through a 70’s-era light source. If you don’t, you’re not seeing it the way the filmmakers or the general public would have seen it at the time. They made their color timing choices by viewing the film through projection equipment of that era, with its warmer and more yellow-tinted output. A neutral light source just doesn’t look right for this movie, because that whole effect is completely removed. The amount of yellow in the image will be significantly reduced compared to how the output would have appeared when the color timing was being done, so in order to see what they would have seen, it has to be put back in.

Obviously very few people are going to be able to project a film print with vintage light source, so incorporating it into the color timing of a release is the only way to actually ensure that it comes across the way it should to the end viewer. Now obviously this doesn’t directly affect what is being done with the algorithm this thread is about, because a neutral color scheme is exactly what it will most easily create. But it is something that needs to be kept in mind for any release that claims to desire color accuracy to the movie’s original appearance.