Thanks Dre !

The thing I wanted to check is the possibility of recovering some shades which had disappeared in the Lowry master but are in other sources, like that print. There, I decomposed the Print version and the Blu Ray version in Y,Cb,Cr and recomposed it, using the Blu Ray Y channel and the Print color channels.

http://www.framecompare.com/image-compare/screenshotcomparison/FJCJNNNU

Let’s look at the walls. The colors are not exactly the same for every elements : some are mint coloured, some are more creamy, some are really neutral (I remember a nice photograph of the set had been posted here a few years ago). But in the Blu Ray, these very subtle differences are no longer visible.

I wonder if that kind of tool could be a good way to give some Blu Ray shots the best regrade possible in order to match the original. If I’m not mistaken, Neverargreat has actually done something like this for the most alterated shots like the Sunset (using the SSE ?).

I know there are some problems in my example (like a remaining - maybe increased - channel misalignment, or the helmet of the soldier which appears to be blown out in the Blu Ray) and I wonder if this process wouldn’t be longer than a sharpening of the print version (for a project like Despecialized for example). Of course, the change is very light and definitly not necessary to make the Blu Ray match the original film, as Dr Dre’s regrade yet does.

But I found interesting to share it wih you. 😃

The fourth frame is the version with the “green cast” removed.