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2017

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Table Of Contents
(a) Channel Selection box (b) Out Range Option box (c) Frame Selection box (d) Source View Option box
(e) Destination View Option box
To Frame:Select
Based on the minimum and maximum slider values.Min / Max
The complete range of histogram values.Full Range
The plot and reference colours.Plot Colour
Based on a [0:1] horizontal and vertical range.Home
Increasing Image Contrast
The slider controls directly below the histogram are the Input Level controls. These controls are used to set
the range of colour values used in the image:
■ The white triangle on the right sets the maximum value for the range.
■ The black triangle on the left sets the minimum value for the range.
You can use the Input Level controls to increase the contrast in the image. For example, if you set the
minimum value to 50, pixels with colour values less than 50 are remapped to 0 (black). Pixels with colour
values greater than 50 are remapped to the appropriate values. This darkens the image and increases the
contrast in the shadow areas.
You can also set the maximum and minimum limits for the colour range by entering the values directly in
the Minimum and Maximum Input fields on either side of the histogram.
To increase the contrast in an image:
1 Display the Histogram menu.
2 Click the Master, Shadows, Midtones, or Highlights button to select the parts of the image you want
to modify.
3 From the Channel Selection box, select Luminance, Red, Green, or Blue as the channel you want to
work with.
4 Position the cursor on the black triangle below the histogram. Drag right to darken the shadow areas
in the image.
About Colour Correcting | 799