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Curves | How To Get The Most From The Adjustment Tool You ‘Think’ You Know

By Kishore Sawh on July 10th 2014

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When I’m editing a photo, I can say beyond a doubt that ‘Curves’ adjustments are my most used. For adjusting overall tonality and color in an image, it’s a great tool for large and fine adjustments. It works just as well with color as with monochromatic/black and white images. If you’re a seasoned photographer, you’re likely well acquainted with the tool, but some just starting out in post processing, and some more advanced, don’t fully have a grasp on just what an effect Curves can have on their images, nor how simple it is to utilize them.

[REWIND: How to Change Hair Color In Photoshop ]

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Bryan O’Neil Hughes from the Photoshop Playbook just comes out and says that curves can be intimidating, and that,

Something about wrangling a diagonal line to yield a proper exposure just isn’t very intuitive.

So, in this short video, he manages to give quite a comprehensive overview and tutorial on how to use this brilliant tool. His instructions are clear, and the approach is simple. He is, for the purpose of this video, using Camera Raw and Photoshop, but was many of you know, Camera Raw and Lightroom actually share the same engine, and you can actually apply this know-how to your Lightroom Develop module, including the ability to use the ‘On Image Control,’ If you are not using a RAW file you can of course use the Camera Raw filter if using Photoshop CC, which is a tool I’ve sang praises for on many an occasion.

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Key Points:

  • Use sliders to adjust the line if you feel moving the line is not comfortable
  • Reset sliders by double clicking the slider point. Holding the Option or Alt key will turn the Cancel button into a Reset Button (this will reset all adjustments).
  • Moving points under the graph will allow more precision of which highlights and shadows are altered as you move the sliders or line.
  • Use the Targeted Adjustment Tool to select a precise point on the image, and as you move, it will adjust just that precise level all throughout the image. In Photoshop, it’s also available as On Image Control (something I never realized).
  • When doing it in Photoshop, use adjustment layers as they are non-destructive, editable, and can be shared.
  • Auto analyzer will analyze your histogram and compare it to professional photographers and adjust accordingly. This can, of course, can then be altered to your liking.
About

Kishore is, among other things, the Editor-In-Chief at SLR Lounge. A photographer and writer based in Miami, he can often be found at dog parks, and airports in London and Toronto. He is also a tremendous fan of flossing and the happiest guy around when the company’s good.

5 Comments

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  1. Basit Zargar

    knew it
    thanks

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  2. Stan Rogers

    Additional tip for Photoshop:

    Auto with curves is a great tool. It’s smart. But it’s not omniscient. It might have trouble with your whole picture because it can’t find anything like your whole picture in its “I know what this is supposed to look like” table. But there’s a pretty good chance it knows what PART of your picture is supposed to look like. So make a selection of the important part of your picture (say the head and shoulders of an environmental portrait, leaving out the funky environment) before adding the curves layer. Ta-da! You can now use Auto to do 95% or more of the work, then either kill or edit the mask that making the selection first created.

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    • Peter Nord

      This is such a good suggestion that I never thought of. Have to share with my students.

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  3. Anthony McFarlane

    Thanks for the post. I am still new at photoshop and this very helpful.

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    • Kishore Sawh

      Anthony, no worries. I’ll plan on putting up a post walking ‘you’ through using curves to really make some of the best black and whites. Cheers

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