Brightness, Light > auto levels, Auto levels method – Nikon CAPTURE NX2 User Manual
Page 189: Correct contrast

Chapter 20 — Adjust Menu
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Light > Auto Levels
187
Brightness
The
Brightness slider provides you with the ability to either brighten or darken your image without
creating unwanted color shifts. Move this slider to the left to darken the image, or move the slider to the 
right to brighten the image.
Light > Auto Levels
The
Auto Levels tool enables Capture NX 2 to analyze your
image in order to determine the correct adjustments to 
spread the available color information across the entire 
range of tonal possibilities. While similar to the auto contrast 
button within the 
Levels & Curves step, the Auto Levels
tool provides you with additional controls.
The
Auto Levels tool provides you with the following
controls:
Auto Levels Method
Click on the auto levels method pull-down menu to select 
between one of the two possible methods:
Auto
The
Auto method results in a redistribution of the
individual color channels, similar to stretching each color 
channel within the 
Levels & Curves tool to the entire
range of the histogram.
Advanced
The
Advanced method begins with the same results as the Auto method, but provides you with access
to the
Correct Contrast and Correct Color Cast sliders.
Correct Contrast
The
Correct Contrast slider is provided by selecting the Advanced method in the auto levels method
pull-down menu. Use this slider to either increase or decrease the amount of contrast that is applied to your 
image. A value of 50 is equivalent to the contrast effect of the 
Auto method.
Shortcut
Ctrl + Alt + Shift + C (Windows)
command + option + shift + C
(Macintosh)
