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            <p class="sharedproducts">TOPIC APPEARS IN: </p><p class="sharedproductindicators"><img src="images/photoshopSharedIndicator.png" title="Photoshop" /><img src="images/aftereffectsSharedIndicator.png" title="AfterEffects" /></p>
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<ul class="navigation"><li class="prev"><a accesskey="p" class="prev" href="WSAC09F654-391B-4bf5-9358-9ED2138831AC.html" title="Adjust sharpening in Camera Raw"><img src="images/blank.gif" alt="Previous" width="17" height="17" /></a></li><li class="next"><a accesskey="n" class="next" href="WS0557D6E9-3550-4936-9123-D65BDA3ABAFF.html" title="Making local adjustments in Camera Raw"><img src="images/blank.gif" alt="Next" width="17" height="17" /></a></li></ul><div class="hierarchy" id="hierarchy"><a href="WSB5C0E258-66DE-4089-9CB0-42F396E2B814.html">Camera Raw</a> /
     <a href="WSB8F2AD18-6EB1-4285-A326-7426B9808E00.html"><b>Modifying images with Camera Raw</b></a> 
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                <h1>
                    Reducing noise in Camera Raw
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                <div><p>The
Noise Reduction section of the Detail tab has controls for reducing <dfn class="term">image noise</dfn>,
the extraneous visible artifacts that degrade image quality. Image
noise includes luminance (grayscale) noise, which makes an image
look grainy, and chroma (color) noise, which is usually visible
as colored artifacts in the image. Photos taken with high ISO speeds
or less-sophisticated digital cameras can have noticeable noise. </p>
<p>The Luminance control reduces grayscale noise, and the Color
control reduces chroma noise. Moving a slider to zero turns off
noise reduction.</p>
<div class="tip"><img src="images/tip_help.png" />When making Luminance or Color Noise Reduction
adjustments, first zoom in on the preview image to at least 100%
to see the noise reduction previewed.</div><div class="fignone"><img alt="" id="sca_luminance_smoothing" src="images/sca_luminance_smoothing.png" /><div class="figdesc">Moving the Luminance slider to the right reduces grayscale
noise (upper right), and moving the Color Noise Reduction slider
to the right reduces chroma noise (lower right).</div><br /></div></div>

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