The above screenshots show the 3 different ways in which
the histogram can be displayed when the image is in RGB colour
mode (default). However, SilverFast also allows the user to edit
images using the CMYK colour mode and a similar set of
histograms, albeit reversed and coloured CMYK rather RGB.
The Colour Cast Removal tool is particularly
useful for removing casts in both highlights and shadows whilst having
virtually no impact on the midtones. Like many of SilverFast's tools it
operates in real-time and so the user will quickly see the effect of
dragging the slider to the left or right.
The Histogram is probably the most used tool within
SilverFast yet much of it remains a mystery to the user. The following
tutorial should help explain how this tool is best applied - Basic
Image Editing - Levels Histogram.
