UMAX Technologies PowerColor, User Manual, Page: 5 / 127

Table of Contents vii
Chapter 5: Correcting Images with
PowerColor Press/CMYK:
Expert Mode
Calibrating PowerColor Press ..........................................................................5-1
Understanding Calibration..........................................................................5-1
Preparing the Target for Output..................................................................5-2
Setting Up the Gray Balance ............................................................................5-5
Editing the Gray Balance Table ..................................................................5-6
Controlling Dot Gain ........................................................................................5-7
Setting Dot Gain ..........................................................................................5-7
Using Tone Controls ........................................................................................5-10
Removing Color Casts..........................................................................5-10
Tone Curves ..........................................................................................5-11
Using the Gray Eyedropper ..................................................................5-12
Setting Highlight and Shadow Points ............................................................5-13
Automatically ......................................................................................5-13
Manually ..............................................................................................5-13
Using Gradation Controls ..............................................................................5-16
Understanding Gradation..........................................................................5-17
Working with Gradation Curves................................................................5-20
Using Negative Slope Detection ................................................................5-21
Working with the Gradation Table............................................................5-22
Determining Black Generation ................................................................5-23