Nikon 9235 Reference Manual - Page 81

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The luminosity editor is shown below. Output level sliders Histogram Black point slider Input/output levels White point slider Gray point slider Item Description Histogram Shows the distribution of pixels of different luminosities in the input image. The horizontal axis shows luminosity (0-255), the vertical axis the number of pixels. Output level Sets the maximum and minimum values for sliders output. Black point slider Sets the minimum input level. Reference:The Tool Chest Item Description Gray point Sets the gray point (gamma value) for lumislider nosity White point slider Sets the maximum input level. Input/output Luminosity input and output levels for the levels point under the cursor in the edit display. The distribution of pixels of different luminosities in the output image are displayed when this button is clicked. Click again to view the luminosity distribution for the input image. Restores the luminosity curve to linear. Control-click (Windows) or command-click (Macintosh) to restore the curves for luminosity, chroma, and hue to linear. Sets the maximum and minimum values for input to values that exclude 0.5% of the brightest and darkest pixels in the crop. The percentage of pixels excluded can be adjusted using the Advanced Color tab in the Preferences dialog. Pg. For more information on: 134 Preferences-Advanced Color 80

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80
Reference:The Tool Chest
The luminosity editor is shown below.
Item
Description
Output level
sliders
Sets the maximum and minimum values for
output.
Black point
slider
Sets the minimum input level.
White point
slider
Sets the maximum input level.
Gray point
slider
Sets the gray point (gamma value) for lumi-
nosity
Histogram
Shows the distribution of pixels of different
luminosities in the input image.
The horizon-
tal axis shows luminosity (0–255), the vertical
axis the number of pixels.
Input/output
levels
Luminosity input and output levels for the
point under the cursor in the edit display.
Input/output
levels
Output level
sliders
Black point
slider
Gray point
slider
White point
slider
Histogram
Restores the luminosity curve to linear.
Con-
trol-click (Windows) or command-click
(Macintosh) to restore the curves for lumi-
nosity, chroma, and hue to linear.
Item
Description
Sets the maximum and minimum values for
input to values that exclude 0.5% of the
brightest and darkest pixels in the crop.
The
percentage of pixels excluded can be adjusted
using the Advanced Color tab in the Prefer-
ences dialog.
Pg.
For more information on:
134
Preferences—Advanced Color
The distribution of pixels of different lumi-
nosities in the output image are displayed
when this button is clicked.
Click again to
view the luminosity distribution for the input
image.