Eli5: How do photo restoration artists know the supposed colors of greyscale images?

1.66K views

Are the colors based purely on their assumptions/imagination, or do the greyscale images retain some sort of data that tells what color on what part?

In: 641

25 Answers

Anonymous 0 Comments

Technically black and white images don’t contain other hidden colours. But the greyscales will act as brightness information for colors you put over it with the correct blend mode.

Anonymous 0 Comments

My Mam had her Wedding photos colourized sometime back in the 60’s, they actually painted colour pigment onto a black & white print.

Anonymous 0 Comments

They don’t. Nobody knows. Anyone that would know is already dead.
If it looks like the correct colour to you, it’s us the correct color.

Anonymous 0 Comments

I suggest you watch this (https://www.youtube.com/watch?v=vubuBrcAwtY), most of the time, Photoshop artists have to research the colours before they can start editing, sure it’s easy to use the brush tool and set the Blending Modes, but color restorations have to be accurate based on its history, so that’s the hard part

Anonymous 0 Comments

https://youtu.be/vubuBrcAwtY <—- I remember a Vox that explores this topic on recoloring old photos and its super interesting! Lots of researching and lighting principles to get colors that are as accurate as possible.