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Chapter 3: Correcting Images in the RGB Color Space
3-7
Note: Highlight and Shadow points don’t need
to be at the extreme ends of a histogram, even
though most of us are taught to think that way.
In fact, the highlight and shadow points don’t
even need to be neutral and in many images
you will need to leave a cast in these points.
Now, change the Highlight Cast correction setting to Half. The color computer
will automatically calculate and keep half of the original cast. Change the cast
setting to None. The Highlight point will now keep 100% of its original cast. Set
the cast setting to Manual and you can now control the Highlight point to any
values that you desire. This of course works identically for the Shadow Cast.
Using the Gray Eyedropper
The gray eyedropper is unique in that it can set multiple points. Gray points are
made up from the quarter tone, midtone, and three-quarter tone regions. On a
Mac, to select multiple points, hold down the Option key (Macintosh) or Control
key (Windows) while selecting each point. Before you select the last point, release
the Option or Control key and click on the point. The tool is then deselected auto-
matically.
Summary of Contents for PowerColor
Page 7: ...Preface...
Page 8: ......
Page 12: ......
Page 13: ...Installation 1 1...
Page 14: ......
Page 21: ...Getting Acquainted 2 2...
Page 22: ......
Page 44: ......
Page 45: ...Correcting Images with PowerColor Photo RGB Mode 3 3...
Page 46: ......
Page 63: ...Correcting Images with PowerColor Press CMYK Production Mode 4 4...
Page 64: ......
Page 66: ......
Page 80: ......
Page 81: ...Correcting Images with PowerColor Press CMYK Expert Mode 5 5...
Page 82: ......
Page 106: ......
Page 107: ...Unsharp Masking and Descreening 6 6...
Page 108: ......
Page 116: ......
Page 117: ...Scanning Images to Disk 7 7...
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Page 125: ...Tips and Tricks 8 8...
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