Colouring WW1 Footage
Excellent programme on TV3 Rhône last night about colouring WW1 35mm film.
A genuinely interesting method. Tge image luminance is known. So rather than using the RGB colourspace of Photoshop/Gimp, they use an ITU-R BT.709 colourspace. They keep the luminance signal and generate the 2 colour difference signals, Cr and Cb.
This makes a lot of sense. The colours were very lifelike and the techniques worked for motion pictures.