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NOTE: These gamma correction charts were not generated by the
Administration / Special Pages / Gamma Correction
selection. They are simulated output.
You can test gamma correction using the setgray PostScript
operator. The QMS Crown Technical Reference Manual, which is
an optional purchase available from your QMS vendor, contains
information on setgray.
NOTE: You may want to use the settransfer PostScript operator
to set gamma correction values not predefined in the
printer. (See the QMS Crown Technical Reference
Manual, which is an optional purchase available from
you QMS vendor, for more information on settransfer.)
Gamma Correction Application
You can use gamma correction to correct gray-scale problems for
scanned images or to accentuate detail. An increase in the gamma
value lightens the image. This change does not affect black or white
text, but may affect gray text. Here are some examples:
■
For a photo with a wide range of gray areas from white to
black, you might want to use gamma correction 1.
■
For a photo with very dark or very light areas and few
intermediate gray areas, you might want to use gamma
correction 3.
The main benefit of gamma correction is that it improves the copy
quality of a scanned image.
♦
Chapter 6
P r i n t Q u a l i t y
6 - 7
Содержание 860
Страница 1: ...QMS 860 Print System User s Guide 1800261 001D...
Страница 14: ...Glossary Index x i v...
Страница 15: ...Chapter 1 Introduction Chapter highlights Printer overview Documentation overview User s guide overview...
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Страница 79: ...Chapter 4 Printer Configuration Chapter highlights Printer control panel operation Printer menu structure...
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Страница 194: ...Chapter 7 Professional Printing Chapter highlights Introduction to typefaces and fonts Introduction to page design...
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Страница 212: ...Chapter 8 Printer Options Chapter highlights Additional printer options Installation procedures for printer options...
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Страница 242: ...may build up static and you will have to repeat the grounding process Chapter 8 P r i n t e r O p t i o n s 8 2 9...
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Страница 293: ...Appendix A Cable Pinouts...
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Страница 301: ...Appendix B Technical Specifications...
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Страница 311: ...Appendix C Character Encoding Tables...
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Страница 314: ...Appendix C Standard Encoding c 2 C h a r a c t e r E n c o d i n g T a b l e s...
Страница 315: ...Appendix C Symbol C h a r a c t e r E n c o d i n g T a b l e s c 3...
Страница 316: ...Appendix C ITC Zapf Dingbats...
Страница 317: ...Appendix D QMS Customer Support...
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Страница 323: ...Appendix E Document Option Commands...
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Страница 327: ...Appendix F Additional Technical Information...
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Страница 360: ...Appendix G Manual Notices...
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Страница 366: ...Appendix G M a n u a l N o t i c e s G 5...