Canon ver 3.5 用户手册

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You can reduce noise that arises in JPEG and TIFF images that have 
been shot at night or with a high ISO speed.

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You can set a noise reduction level from within a range of 0 to 20. 
The larger the setting, the larger the noise reduction effect.

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Noise reduction is applied to the image and the image is 
redisplayed.

Drag the sliders right

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You can check the noise reduction effect.

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In the [50% view] or [Fit to window] display, it may be difficult to 
check the noise reduction effect.

Because noise reduction effect is difficult to see in the [50% view] and 
[Fit to window] displays, use [100% view] or [200% view] to check the 
noise reduction.

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If [Luminance noise] has been set, resolution may be reduced 
along with reduction of noise.

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If [Chrominance noise] has been set, color bleeding may occur 
along with reduction of noise. 

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You can set the batch processing settings for noise reduction 
beforehand, using [Default noise reduction settings] in the [Tool 
palette] tab sheet in Preferences 

. This is particularly useful 

for applying noise reduction to all the images in a folder at once, 
such as batch noise reduction for images with high ISO speeds. 
However, where images have a recipe attached, the noise level 
recorded in the recipe is applied.

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For a list of tool palette functions, refer to 

.

COP

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