NEC Spectraview 1990 Users Manual
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![Page 43
SPEC TRAVIEW II - USER’S GUIDE |
Installation and Setup
Problem: Calibrate button is disabled.
Solution: The calibrate button is disabled for either of the following reasons:
No supported calibration sensor was detected.
No supported display monitor was detected.
See the following sections for further explanations.
Problem: No supported monitor was detected.
Solution:
Verify that the display monitor connected is a model supported by Spectra\
View II.
If more than one video output is...](http://img.usermanuals.tech/thumb/54/52297/w64_nec_spectraview_1990-user-s-manual-42.png "Page 43
SPEC TRAVIEW II - USER’S GUIDE |
Installation and Setup
Problem: Calibrate button is disabled.
Solution: The calibrate button is disabled for either of the following reasons:
No supported calibration sensor was detected.
No supported display monitor was detected.
See the following sections for further explanations.
Problem: No supported monitor was detected.
Solution:
Verify that the display monitor connected is a model supported by Spectra\
View II.
If more than one video output is...")
![Page 44
| SPEC TRAVIEW II - USER’S GUIDE
Problem: No supported calibration sensor was detected.
Solution:
Try reconnecting the calibration sensor and click the Auto Detect button in the Preferences dialog
to re-detect the sensor.
It may be necessary to close and re-launch the SpectraView application.
(ÿ Windows) It may be necessary to install the drivers for the color sensor device.\
Note that only
the drivers for the X-Rite iOne devices are installed by the SpectraView setup application....](http://img.usermanuals.tech/thumb/54/52297/w64_nec_spectraview_1990-user-s-manual-43.png "Page 44
| SPEC TRAVIEW II - USER’S GUIDE
Problem: No supported calibration sensor was detected.
Solution:
Try reconnecting the calibration sensor and click the Auto Detect button in the Preferences dialog
to re-detect the sensor.
It may be necessary to close and re-launch the SpectraView application.
(ÿ Windows) It may be necessary to install the drivers for the color sensor device.\
Note that only
the drivers for the X-Rite iOne devices are installed by the SpectraView setup application....")
![Page 46
| SPEC TRAVIEW II - USER’S GUIDE
9
Test Pattern Guide
The SpectraView II software includes several test patterns that are useful in evaluating the monitor calibration. It is
also good practice to use the Test Patterns to quickly visually verify the integrity of the calibration\
.
A pattern based on the DICOM TG18-GC test pattern has a number of useful features that allow very detailed
analysis of the monitor grayscale performance in one pattern. The main...](http://img.usermanuals.tech/thumb/54/52297/w64_nec_spectraview_1990-user-s-manual-45.png "Page 46
| SPEC TRAVIEW II - USER’S GUIDE
9
Test Pattern Guide
The SpectraView II software includes several test patterns that are useful in evaluating the monitor calibration. It is
also good practice to use the Test Patterns to quickly visually verify the integrity of the calibration\
.
A pattern based on the DICOM TG18-GC test pattern has a number of useful features that allow very detailed
analysis of the monitor grayscale performance in one pattern. The main...")
![Page 47
SPEC TRAVIEW II - USER’S GUIDE |
Glossary
Achromatic – Neutral in color (having no hue).
Additive Primaries – Red, green, and blue light that when combined in different relative inten-
sities produces different colors. (See also Subtractive Primaries)
Backlight – the internal light source for a Liquid Crystal Display, such as fluorescent lamps or
array of LEDs (Light Emitting Diodes).
Blackbody – A hypothetical object that absorbs all incident radiation, thus any radia\
tion (e.g....](http://img.usermanuals.tech/thumb/54/52297/w64_nec_spectraview_1990-user-s-manual-46.png "Page 47
SPEC TRAVIEW II - USER’S GUIDE |
Glossary
Achromatic – Neutral in color (having no hue).
Additive Primaries – Red, green, and blue light that when combined in different relative inten-
sities produces different colors. (See also Subtractive Primaries)
Backlight – the internal light source for a Liquid Crystal Display, such as fluorescent lamps or
array of LEDs (Light Emitting Diodes).
Blackbody – A hypothetical object that absorbs all incident radiation, thus any radia\
tion (e.g....")
![Page 49
SPEC TRAVIEW II - USER’S GUIDE |
Gamma – The relationship between the input video signal to a display monitor and\
the screen
output luminance. Typically the screen luminance follows a mathematical power function of t\
he
input video signal, the exponent of which is called the gamma.
Gamut – The range of colors that can be reproduced on a particular device such a\
s a monitor
or printer, or that can be distinguished by a sensing device such as a scanner or \
the human
eye.
Hue –...](http://img.usermanuals.tech/thumb/54/52297/w64_nec_spectraview_1990-user-s-manual-48.png "Page 49
SPEC TRAVIEW II - USER’S GUIDE |
Gamma – The relationship between the input video signal to a display monitor and\
the screen
output luminance. Typically the screen luminance follows a mathematical power function of t\
he
input video signal, the exponent of which is called the gamma.
Gamut – The range of colors that can be reproduced on a particular device such a\
s a monitor
or printer, or that can be distinguished by a sensing device such as a scanner or \
the human
eye.
Hue –...")
![Page 50
0 | SPEC TRAVIEW II - USER’S GUIDE
PAL – Phase Alternation by Line. A standard for encoding video signals used in Western Eu-
rope and parts of Asia.
Phosphors – Materials that emit light when struck by radiation of certain wavel\
engths. CRT
displays use phosphors that give off red, green, and blue light to display an image on the
screen.
Profile – A file containing a description of the color characteristics of a device such as a moni-
tor, printer, or scanner.
Refresh Rate – The number of...](http://img.usermanuals.tech/thumb/54/52297/w64_nec_spectraview_1990-user-s-manual-49.png "Page 50
0 | SPEC TRAVIEW II - USER’S GUIDE
PAL – Phase Alternation by Line. A standard for encoding video signals used in Western Eu-
rope and parts of Asia.
Phosphors – Materials that emit light when struck by radiation of certain wavel\
engths. CRT
displays use phosphors that give off red, green, and blue light to display an image on the
screen.
Profile – A file containing a description of the color characteristics of a device such as a moni-
tor, printer, or scanner.
Refresh Rate – The number of...")
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