Canon Computer Accessories ver 3.5 Manuel D’Utilisation
92
Reducing Noise
You can reduce noise that arises in JPEG and TIFF images that have
been shot at night or with a high ISO speed.
been shot at night or with a high ISO speed.
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.
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.
[Fit to window] displays, use [100% view] or [200% view] to check the
noise reduction.
To check the noise reduction effect, enlarge the image and
display it
display it
O
If [Luminance noise] has been set, resolution may be reduced
along with reduction of noise.
along with reduction of noise.
O
If [Chrominance noise] has been set, color bleeding may occur
along with reduction of noise.
along with reduction of noise.
O
You can set the batch processing settings for noise reduction
beforehand, using [Default noise reduction settings] in the [Tool
palette] tab sheet in Preferences
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.
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
.
COP
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