Codonics Horizon - ChromaVista Adjustments

Horizon Imager User’s Manual 9-7
Adjusting Image Appearance
7. Once you find the most suitable gamma and contrast settings,
you should use them for future print jobs. For example, you
should update the imager’s Default User Settings and any Job
Settings files that you use.
8. Once you have the imager configured as you want it using this
procedure, you should save the configuration settings to backup
media. For more information about how to save configuration
settings, refer to “Saving the Configuration Settings” on
page 2-20.
`Üêçã~sáëí~=^ÇàìëíãÉåíë
To find the best gamma, contrast, and saturation settings for color
images printed on ChromaVista media, you:
1. Determine the best gamma and contrast settings, as described in
“DirectVista Adjustments” on page 9-5. The only exception is
that you can ignore the instructions about finding the setting for
Dmax. The Dmax parameter does not apply to color media.
2. Using an image that is typical for your application, print a color
image bracketing sheet, using the gamma and contrast settings
determined in step 1.
3. Examine the gamma/saturation bracketing sheet and select the
copy with the best appearance.
If none of the copies are satisfactory, reprint the bracketing
sheet using the settings of the best copy. Repeat this until one
of the image copies is acceptable.
NOTE: Depending on the application, you can change gamma or saturation in the following
ways: (1) from the DICOM user application or PostScript printer settings; (2) changing the
Default Media and Default User Settings as the imager control panel (refer to Chapter 8);
(3) using Job Settings files (refer to the Horizon Imager Technical Manual). Making these
changes does not affect jobs already in the print queue.
CAUTION Changing the imager’s Default Media and Default User Settings could
affect subsequent prints made by other users. Use caution when changing default
settings.
3