HP DreamColor Z31x Studio Display User Manual Page 94
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- Table of contents
- TROUBLESHOOTING
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● As only primary and white point measurements are made with the external instrument, a new luminance
target cannot be iterated. Therefore, the existing luminance value for the preset you are recalibrating
will be used.
● Existing calibration measurement data must be present on the display in order for gamma to be
correctly calculated. In most cases, factory data or data from your most-recent calibration with a
supported instrument will be suicient.
<external_primaries rx="0.675" ry="0.315" gx="0.210" gy="0.705"
bx="0.147" by="0.054" wx="0.3129" wy="0.329"/>
The attributes are identical to those in target_primaries. As with target_primaries, the use_uv tag is optional.
Making measurements with non-supported measurement equipment
To facilitate primary and white point measurements, HP recommends that you use the internal test pattern
generator. This is because the internal test patterns are always displayed using the display's native gamut.
The internal test patterns are not accessible by default, but one of the bezel button function keys can be set
to display the pattern generator.
To set a function key to the test pattern generator:
1. Press any bezel button to display the initial button labels, and then choose Open Menu to display the
main menu.
2. Select Menu and Message Control.
3. Select Congure Function Buttons.
4. Select the desired function button to display the list of commands that can be mapped.
5. Select Test Pattern Generator to assign it to the function button.
6. Press Exit.
Once you have mapped the test patterns to a bezel button, you can use that function to display the required
patterns. Display the red, green, blue, and white test patterns, and measure them with your instrument.
Record the xy or u’v’ measurements into an <external_primaries> tag in your Studio Cal XML le. Then enter
the desired primaries and white point into a <target_primaries> tag in the same le.
The following is an example of an external measurements Studio Cal XML le:
<?xml version="1.0" encoding="ISO-8859-1"?>
<studiocal>
<calibration entries="1">
<calibration_info>
<preset num="0" name="sRGB D65" store="user"/>
<gamma value="sRGB"/>
<target_primaries rx="0.640" ry="0.330" gx="0.300" gy="0.600"
bx="0.150" by="0.060" wx="0.3127" wy="0.329" wY="80"
external="FALSE"/>
<external_primaries rx="0.675" ry="0.315" gx="0.210" gy="0.705"
bx="0.147" by="0.054" wx="0.3129" wy="0.327"/>
</calibration_info>
84 Chapter 4 Using the StudioCal XML schema
- User Guide 1
- About This Guide 3
- Table of contents 5
- 1 Getting Started 11
- Features 12
- Front panel controls 13
- Rear and side components 14
- Setting up the display 15
- Mounting the display 16
- Installing a security cable 18
- Connecting the cables 19
- Adjusting the display 23
- Turning on the display 24
- Connecting USB devices 25
- Removing the display stand 26
- 2 Using the display 27
- Updating the rmware 28
- Adjusting luminance 30
- Video signal adjustments 31
- Overscan the frame 32
- Show only the blue channel 32
- The “Fill To” options 32
- 4096 × 2160 1.85:1 3996 2160 36
- 4096 × 2160 2.39:1 4096 1716 36
- 2048 × 1080 1.85:1 1998 1080 36
- 2048 × 1080 2.39:1 2048 858 36
- Working with markers 39
- 16:9 aspect ratio markers 40
- 4:3 aspect ratio markers 41
- Crosshair markers 42
- Marker color 42
- Custom markers 42
- Marker info element 43
- Marker position element 43
- Marker style element 43
- Custom marker example 44
- Renaming video inputs 45
- Using the KVM switch 46
- Customizing bezel buttons 48
- User presets 50
- Activating a user preset 51
- Automatic input-based presets 52
- Color settings menu 53
- Video input menu 55
- Image adjustment menu 56
- Split/PIP control menu 57
- Load/save user preset 59
- Calibration 59
- Language menu 60
- Management menu 61
- Menu and message control menu 65
- Information 66
- Auto EDID update 67
- 3 Display calibration 68
- Calibration environment 69
- Calibration frequency 70
- User calibration methods 71
- Menu-driven user calibration 72
- White point 73
- Gamma/EOTF 73
- Luminance 73
- StudioCal XML calibration 74
- Calibration automation 74
- Conguration 77
- Usage guidelines 78
- File name and disk format 82
- Declaration 82
- Comments 82
- Root element 82
- Calibration element 83
- Calibration info element 83
- Core calibration tags 83
- Target_primaries 84
- Core calibration tag examples 85
- ICC prole generation 86
- Optional calibration tags 87
- Validation 88
- Validation results le 89
- Archive LUT 90
- Download LUT 90
- Upload LUT 91
- LUT folder structure 92
- Non-calibration elements 95
- 5 Remote management 100
- Setting dashboard security 101
- Navigating the dashboard 103
- Logging out of the dashboard 103
- 6 Support and troubleshooting 104
- Product support 105
- 7 Maintaining the display 106
- A Technical specications 107
- Preset display resolutions 108
- Preset display resolutions 99 109
- Energy saver feature 110
- B Accessibility 111
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