Canon RAW Image Processing 사용자 설명서
58
You can reduce noise that arises in RAW images shot at night or with a
high ISO speed.
NR is an abbreviation for “noise reduction”.
high ISO speed.
NR is an abbreviation for “noise reduction”.
1
Select the [NR/Lens/ALO] tab sheet from the tool
palette in the edit window or edit image window.
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 20.
The larger the setting, the larger the noise reduction effect.
The larger the setting, the larger the noise reduction effect.
3
Click the [Apply] button.
¿
Noise reduction is applied to the image and the image is
redisplayed.
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.
check the noise reduction effect.
O
The noise reduction function does not work
Noise reduction cannot be applied when [Viewing and saving RAW
images]
Noise reduction cannot be applied when [Viewing and saving RAW
images]
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.
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.
Additional information
O
You can set the default noise reduction beforehand, using
[Default noise reduction settings] in the [Tool palette] tab sheet in
Preferences
[Default noise reduction settings] in the [Tool palette] tab sheet in
Preferences
.
• When [Apply camera settings] is selected, you can pre-set a
noise reduction level that suits the camera settings beforehand
as the default.
as the default.
• When [Set as defaults] is selected, you can pre-set a preferred
default setting for the noise reduction level beforehand. 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.
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, for images with recipes attached, the noise level
recorded in the recipe will be applied.
recorded in the recipe will be applied.
O
If [Luminance noise reduction] has been set, resolution may be
reduced along with reduction of noise.
reduced along with reduction of noise.
O
If [Chrominance noise reduction] has been set, color bleeding
may occur along with reduction of noise.
may occur along with reduction of noise.
O
For a list of tool palette functions, refer to
.
Reducing Noise
COP
Y