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PostPosted: Tue May 12, 2009 4:05 pm 
Apologies for the really daft question again... :oops:

I am not intending to get into the depths of post processing just yet - I need to learn to take pictures first, after all! However, a lot of my photographs just need a little tweaking on the computer as the colours rarely seem to be quite what they were to the eye.

Anyway, I wondered if someone would be kind enough to point me in the right direction of somewhere I an learn about curves, please. I am forever seeing images described as 'just adjusted the curves' but I have no idea what this means! What is a curve in terms of image processing, why would one edit it and how?!

I have searched the web already, of course, but all I can find is tutorials about 'adjustment curves' and nothing at a level that satiates my simple mind and explains the very basics!

Thanks folks :)

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PostPosted: Tue May 12, 2009 5:19 pm 
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Joined: Sat Sep 30, 2006 4:30 pm
Posts: 9886
Location: UK
Hi sooz,

Not daft at all as it's a big subject. Did you see this CambridgeInColour tutorial? The first diagram says it all - "This input tone .. Becomes this output tone".

If you've got some image processing software which provides a curves dialog then have a play as that's the best way to learn the advantages and drawbacks.


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 Post subject:
PostPosted: Tue May 12, 2009 5:46 pm 
Oh crikey! Thanks for that link, Bob, it seems to be exactly what I need but my goodness it hurt my head just to glance at it! :shock:

I have read through several Cambridge in Colour tutorials and they have been a great help, I hadn't yet ventured into their image processing section though. It's nice to find something written at the more basic level - I often come across things that say "since you're reading this we'll assume you already know whatever" and struggle to find the proper newbie stuff!

Anyhow, before I go totally off on a tangent, I'll say thanks again, that's a great help :)

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