User Guide

Chapter Finish
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Color Correction Editor
For example, the histogram of a fully saturated red color clip (255,0,0) comprises a green vertical
line at position 255 in the R field and two lines at position 0 in the G and B fields. Clearly stated,
all the pixels contained in the image are red=255 and it contains no values for the other two com-
ponents. The histogram for a dark-green color clip (25,25,25) displays the three lines (full height)
at the same X positions.
One more example:
Image and histogram
The motif is a circular gradient from blue to red. A large number of blue pixels are present result-
ing in a distinct display of R, G and B: three lines to the full height. Red is also present in the req-
uisite specification; theoretically, however, it is only a single pixel (determined by the gradient
definition) and therefore it does not show in the histogram display.
The gradient appears as a ramp in the R and B fields.
If saturation is removed from the image, the display in the three fields will be identical; it then
represents only the gray-scale values of the gradient.
Experiment a little with the sliders to familiarize yourself with the histogram.
Basically, the following applies: The chances for a differentiated color correction are better if the
values are distributed fairly evenly over the individual color channels.