2011

Table Of Contents
(a) Input (b) Output
NOTE The CC Histogram's input and output level controls' fields are animatable
attributessee
Setting Keys Manually on page 676 and Validating and Applying
the Expression String
on page 729.
Input Sliders
The Input sliders below the histogram viewer are used to control the range of
input color values in the image. The white slider on the right sets the
maximum value for the range. The black slider on the left sets the minimum
value for the range.
The histogram shown in the main tab is that of the selected channel creating
a total of four possible histograms. The histogram background color matches
that of the selected channel: gray for luminance, red, green, or blue.
All main tab values are shown in the range [0 to 1].
The input slider controls the values that are clamped to 0 (below the minimum)
and to 1 (above the maximum). Values in between are scaled from 0 to 1. You
can also use this to increase contrast.
You can set the maximum and minimum limits for the color range by entering
the values in the Input fields on either side of the histogram.
NOTE Input levels increase contrast (remap more grays to blacks and whites),
while output levels decrease contrast (remap more blacks and whites to grays). If
you have an image that requires some softening of color or tone, the output levels
re-introduce some midtones to the image.
To increase contrast with the input sliders:
1 From the Tools tab, drag the CC Histogram tool from the Color Correction
folder to the dependency graph in the Schematic view.
CC Histogram Controls | 641