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auto contrast

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Joe Orange
auto contrast
on Sep 6, 2011 at 5:44:34 pm

Is using auto contrast on a clip in AE a no-no, as it once was in Photoshop of old, where Curves were the preferred way to go for due to the linear overall affect of the "auto" option?

thanks


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Walter Soyka
Re: auto contrast
on Sep 6, 2011 at 5:49:22 pm

Auto contrast can be very useful for removing flicker, but it does not provide the degree of control over an image that a manually-controlled effect like Curves would.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Joe Orange
Re: auto contrast
on Sep 6, 2011 at 6:23:48 pm

Thanks for the reply Walter.

Would you say that auto contrast is inclined to destroy or compress pixel highlight and shadow information as well?


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Walter Soyka
Re: auto contrast
on Sep 6, 2011 at 6:27:40 pm

The Black Clip and White Clip settings will help you limit the destruction.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Joe Orange
Re: auto contrast
on Sep 6, 2011 at 7:05:28 pm

How exactly?
Is there a way you can see the effect whilst using the slider as in Levels in Photoshop when pressing Alt whilst moving the sliders gives you a graphic view of what is being clipped or blown out?


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Walter Soyka
Re: auto contrast
on Sep 6, 2011 at 7:55:13 pm

If you add Levels effects before and after the Auto Contrast, you will be able to see the before and after histograms in the Effects panel.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Joe Orange
Re: auto contrast
on Sep 6, 2011 at 8:18:56 pm

Very helpful and much appreciated.


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