Digital Photo Professional 3.3 Instruction Manual

56
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2
3
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Introduction
Contents at
a Glance
Basic
Operation
Advanced
Operation
Advanced
Image Editing
and Printing
Editing
JPEG/TIFF
Images
Index
Processing
Large Numbers
of Images
Reference
Reducing Noise
You can reduce noise that arises in RAW images that have been shot at
night or with a high ISO speed.
NR is an abbreviation for “noise reduction”.
1
Select the [NR/Lens] tab sheet from the tool palette
in the edit window or edit image window.
2
Adjust an image.
O You can set a noise reduction level from within a range of 0 to 10.
The larger the setting, the larger the noise reduction effect.
3
Click the [Apply NR] button.
¿ Noise reduction is applied to the image and the image is
redisplayed.
Drag the sliders right
4
Display the image in the [100% view] or [200% view].
¿ You can check the noise reduction effect.
O In the [50% view] or [Fit to window] display, it may be difficult to
check the noise reduction effect.
O The noise reduction function does not work
Noise reduction cannot be applied when [Viewing and saving RAW
images] (p.70) is set to [High speed] in the [Preferences] window.
Select [High quality] to reduce noise.
O To check the noise reduction effect, enlarge the image and
display it
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.
O Luminance noise reduction is not available for sRAW images
You can only reduce chrominance noise for sRAW images. You
cannot reduce luminance noise.
Additional information
O If [Luminance noise] has been set, resolution may be reduced
along with reduction of noise.
O If [Chrominance noise] has been set, color bleeding may occur
along with reduction of noise.
O You can set the batch processing settings for noise reduction
using [Default noise reduction settings] in the [Tool palette] tab
sheet in Preferences (p.73). 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.
O For a list of tool palette functions, refer to p.108.