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levels adjustments: input versus output

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clyde villegas
levels adjustments: input versus output
on Sep 21, 2008 at 11:51:37 pm

What is the difference between input levels and output levels adjustments? When moving the sliders, it's like the input is simply the opposite of the output. However, when adjusting some images, there are times that being an opposite of the other is not just the only difference, but I can't tell exactly what. Can you tell me where exactly the output and input are used for?


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Richard Harrington
Re: levels adjustments: input versus output
on Sep 22, 2008 at 3:01:20 am

Input is where you adjust what is coming in....

these can be used to darken shadows, pop whites, or tweak mid points.


Output is like a clamp that sets the minimum black and maximum white

Richard M. Harrington, PMP

Author: Photoshop for Video, Understanding Adobe Photoshop, and ATS:iWork


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clyde villegas
Re: levels adjustments: input versus output
on Sep 22, 2008 at 3:17:17 am

Thanks Richard! Great help.


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Richard Harrington
Re: levels adjustments: input versus output
on Sep 22, 2008 at 3:22:26 am

you're welcome

Richard M. Harrington, PMP

Author: Photoshop for Video, Understanding Adobe Photoshop, and ATS:iWork


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