Xerox P8EX Spire CXP8000 Color Server - User Guide - Page 373
Gradation Graph, Gradation Controls, If only one separation is active, the gradation values are listed
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Color Tools 359 Gradation Graph Spire CXP8000 color server gradation tables are represented visually in the Gradation dialog box in the form of a graph: DefaultGradTable (Input equals Output) Modified gradation graph The horizontal axis represents the tone values of the image before gradation changes (input). The vertical axis represents the tone values of the image after gradation changes (output). All four separations (CMYK) are shown, but if they have identical curves, the graphs appear as if there is only one curve. Gradation Controls The gradation controls are used to adjust brightness in specific tone ranges. Click the arrow buttons to increase or decrease the graph value of the active separation(s) for a specified section of the graph. If only one separation is active, the gradation values are listed, ranging from -50 to 50. If more than one separation is active, no gradation values are listed. Changes to gradation tables are immediately presented as changes to the gradation graph.