Adobe photoshop cs2 사용자 설명서
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ADOBE PHOTOSHOP CS2
User Guide
Moving the Luminance Smoothing slider to the right reduces grayscale noise, and moving the Color Noise Reduction slider to the right reduces
chroma noise.
chroma noise.
Chromatic aberration
Chromatic aberration is a common defect caused by the failure of the lens to focus different frequencies (colors) to
the same spot. In one type of chromatic aberration, the image from each color of light is in focus, but each image is
a slightly different size. This type of aberration is seen as a complementary color fringing in areas away from the
center of the image. For example, you may see a red fringe on the side of an object toward the center of the image,
and cyan fringe on the side of the object away from the center of the image.
the same spot. In one type of chromatic aberration, the image from each color of light is in focus, but each image is
a slightly different size. This type of aberration is seen as a complementary color fringing in areas away from the
center of the image. For example, you may see a red fringe on the side of an object toward the center of the image,
and cyan fringe on the side of the object away from the center of the image.
Original image (left), and after fixing chromatic aberration (right)
To compensate for chromatic aberration in Camera Raw
1
Zoom into an area near the corner of the preview image. For the best results, the area should contain very dark or
black detail against a very light or white background. Look for the color fringing.
2
In the Lens tab, move one or more of the following sliders:
Fix Red/Cyan Fringe
Adjusts the size of the red channel relative to the green channel. This compensates for red/cyan
color fringing.
Fix Blue/Yellow Fringe
Adjusts the size of the blue channel relative to the green channel. This compensates for
blue/yellow color fringing.