colour correction tutorial
March 13th, 2010 Posted in Photography, Tutorials | 1 Comment »I’ve seen some pretty poorly-corrected photos lately. I’m going to show you how to use the channel mixer tool to colour-correct your photos, since I find it gives the greatest level of control.
Here’s a my boyfriend holding up a bunch of fake Oscar trophies at an Oscars party we went to, because he’s awesome and also a lovable wiener:

You’ll notice that the photo’s quite yellow — and it shouldn’t be that yellow.
The thing about cameras is that although they pick up light and colour roughly the same as our eyes, they don’t have the internal colour-correction system that our brain provides. Just like how our eyes adjust for high and low levels of light, they also adjust for colour.
This is why your house might look dark and greenish the moment you step in after being out on a bright, sunny day, and it’s also why if you stare at a bright red spot for thirty seconds, then look at a blank wall, you’ll see a cyan “ghost image.” Your brain has been compensating for the intensity of the red by adding cyan.
Incandescent light is extremely yellow. It’s comfortable and warm in a house (this is why the new fluorescent eco-lights come in a tinted yellow variety), but looks terrible in a photograph. This is why proper colour adjustment is important — you want the photo to look the way it did to the photographer’s naked eye.
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