Advanced Picture Settings
Brightness (mid-tone)
Adjusting the mid-tone brightness is essentially a
Gamma adjustment. In other words, moving this slider
changes the lightness of the mid-tone in relation to
the highlight and shadow points. Using this tool is the
equivalent of moving the mid-tone slider in the Levels
dialog mentioned earlier in this section. You will notice
that when you change this slider, the Levels dialog will
become highlighted.
Saturation
Moving the slider to the right increases color satura-
tion, to the left decreases color saturation. This is a
subjective adjustment.
Luminance Smoothing (default=20)
Luminance smoothing alters the processing algo-
rithm to reduce noise which appears as grain in the
Luminance (density information) of an image. A lower
setting (0) applies no smoothing, and appears grainier
especially in the shadows. A higher setting (100) ap-
plies maximum smoothing, and will tend to distort
information by over-averaging. The default setting is 20
and is effective for most applications. There are many
variables across a collection of digital images, so we
suggest testing before applying any changes.
Luminance Smoothing example:
0 (None)
20 (Default)
100 (Full)
Color Noise Reduction (default=20)
Is similar to Luminance Smoothing in that it alters the
processing algorithm to reduce noise. The primary
difference is that this process specifically alters pixels
with color value anomalies. These anomalies occur due
to the color matrix on the CCD itself.
In certain circumstances where the subject matter
contains high frequency repetitive patterns such as
hair, text, window screens, and textiles undesirable
artifacts may occur. These artifacts are often referred
to as color moire patterns. A lower setting (0) applies
no smoothing, and will show the most color artifacts. A
higher setting (100) applies maximum smoothing, and
will tend to de saturate colors in certain areas.
Color Noise Reduction sample:
0 (None)
20 (Default)
100 (Full)
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