Canon eos40d Digital Photo Professional Instruction Manual Macintosh (EOS 40D) - Page 49

Reducing Noise, Click the [Apply NR] button.

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Page 49 highlights

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] tab sheet on the tool palette. 2 Adjust an image. Drag the sliders right 3 Click the [Apply NR] button. ¿ Noise reduction is applied to the image and the image is redisplayed. 4 The image is displayed enlarged 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 is difficult to check the noise reduction effect, so noise reduction is not applied. Introduction Contents at a Glance 1Basic Operation 2Advanced Operation 3Advanced Image Editing and Printing Additional information O The noise reduction function does not work Noise reduction cannot be applied when [Viewing and saving RAW images] (p.57) 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 Noise reduction is applied when the image is displayed enlarged in the [100% view] or the [200% view] in the edit window or the edit image window. It is not applied in the [50% view] or the [Fit to window] display or any other window as the noise reduction effect is difficult to check. 4 Processing Large Numbers of Images 5 Editing JPEG Images Reference Index 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 For a list of tool palette functions, refer to p.91. 48

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48
1
2
3
4
5
Introduction
Contents at
a Glance
Basic
Operation
Advanced
Operation
Advanced
Image Editing
and Printing
Editing JPEG
Images
Index
Processing
Large Numbers
of Images
Reference
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] tab sheet on the tool palette.
2
Adjust an image.
3
Click the [Apply NR] button.
¿
Noise reduction is applied to the image and the image is
redisplayed.
Reducing Noise
Drag the sliders right
4
The image is displayed enlarged 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 is difficult to check
the noise reduction effect, so noise reduction is not applied.
O
The noise reduction function does not work
Noise reduction cannot be applied when [Viewing and saving RAW
images]
(p.57)
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
Noise reduction is applied when the image is displayed enlarged in
the [100% view] or the [200% view] in the edit window or the edit
image window. It is not applied in the [50% view] or the [Fit to window]
display or any other window as the noise reduction effect is difficult to
check.
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
For a list of tool palette functions, refer to
p.91
.