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Chapter 3 – Configuration

Using the built-in test patterns

Truelight SDI User Guide

16

Using the cursor

As a diagnostic aid, a cross-hair cursor can be superimposed over the output image from 
the unit.

The cursor can be switched on using the 

Enable

 button. When enabled, the RGB values for 

the pixel at the centre of the cursor are displayed for both the input to the cube and its 
output—that is, the pre- and post-transform values are both shown. 

Note that these values are 10-bit numbers (reported to 8-bit precision) read 

after

 any 

input scaling and 

before

 any output video scaling.

By adjusting the 

X

 and 

Y

 sliders, any pixel within the active picture area can be selected.

Figure 3-5: 

Cursor options

Содержание Truelight SDI

Страница 1: ...Truelight SDI User Guide...

Страница 2: ...be either trademarks and or registered trademarks of the respective owners The publisher and the author make no claim to these trademarks While every precaution has been taken in the preparation of t...

Страница 3: ...ting to a network 7 Assigning a static IP address 8 Chapter 3 Configuration 9 Programming the colour cube slots 9 Connecting to the Truelight SDI unit 9 Downloading cubes to the unit 11 Removing cubes...

Страница 4: ...9 Remote control 19 Connecting to the unit 19 Stopping the remote control 22 Backing up the cubes 23 The Truelight root 23 Performing a backup 23 Editing backed up cubes 24 Checking the cubes 24 Chapt...

Страница 5: ...rojected image By carefully measuring and characterising each stage in the workflow the closest possible match between preview and final image can be achieved allowing artists colourists supervisors a...

Страница 6: ...the Ctrl key and press A The other modifier keys are Shift and Alt Modifier keys may also be used in combination Ctrl Shift A means hold down both Ctrl and Shift and press A Italics Cross references...

Страница 7: ...itself or the data resampled in some way When the number of possible input values is too large to store the solution for every input the table may contain the solutions to a subsampled input space In...

Страница 8: ...loading onto Truelight hardware like the Truelight SDI unit it is communicated to and stored on the unit as a cube Since the Truelight cube is more general than most other colour transform LUT format...

Страница 9: ...ardware The Truelight SDI hardware consists of a 1U rack mountable unit It should be bolted into a standard 19 rack using appropriate screws and allowing sufficient space above to provide adequate ven...

Страница 10: ...outputs SDI The SDI connections support both standard single link SDI and dual link SDI signals For single link output use either the OUT A or the OUT B connector Use both the OUT A and OUT B connect...

Страница 11: ...nds However if it is set to obtain an IP address via DHCP the first time the unit is powered up on a network it does not initially have an IP address This this should be obtained automatically after a...

Страница 12: ...a message similar to the following Warning This will disconnect any connected network users and reset all network servers OK to proceed Y N y Type y to continue Message from System DHCP IP lost 3 Che...

Страница 13: ...created in another system to the Truelight SDI unit an appropriate license must be installed on this machine Connecting to the Truelight SDI unit To connect to the Truelight SDI unit 1 The Truelight...

Страница 14: ...also has a valid ethernet connection then the current IP address is automatically entered in the Name or IP address field this is a useful way to find out the current IP address of the unit Once the...

Страница 15: ...when making repetitive adjustments however remember to commit the cube to a slot once it has been finalised 3 To download the cube to the selected slot click Load profile cube where profile is the nam...

Страница 16: ...erflow are marked as red colours that overflow are marked as green colours that underflow in one channel but overflow in another are marked as blue All other colours are shown as greys The Map option...

Страница 17: ...mple RGB Scaled or YCrCb Unscaled as part of the file name for the profile used to generate the cube Figure 3 3 Hardware modes Mode Description 422A The input mode is set to 4 2 2 YCrCb and the signal...

Страница 18: ...toggle button controls the video legalizer This function can also be controlled from the front panel or via the Java remote control see Legalizer on page 18 Scaling This toggle button turns the scalin...

Страница 19: ...n ramp Full amplitude ramp in the green channel only Blue ramp Full amplitude ramp in the blue channel only White ramp Full amplitude ramp in the red green and blue channels Colours Full field full ga...

Страница 20: ...button When enabled the RGB values for the pixel at the centre of the cursor are displayed for both the input to the cube and its output that is the pre and post transform values are both shown Note t...

Страница 21: ...cubes 9 to 12 are loaded with gamut alarm versions of cubes 1 to 4 enabling a simple toggle between gamut alarm on and off states for the first four cubes see Creating a gamut alarm cube on page 12 fo...

Страница 22: ...alizer depends on the nature of the video being fed into the unit and also on how the output data is to be subsequently processed The legalizer can be toggled on and off by holding down the 0 button a...

Страница 23: ...Java applet To access the unit it must be connected to the network via its ethernet port see Installing the Truelight SDI hardware on page 5 Connecting to the unit Open a Java enabled browser and then...

Страница 24: ...s blank with an X through it Note that the remote control has no facility for downloading cubes into the box for details of loading cubes into the Truelight SDI unit refer to Programming the colour cu...

Страница 25: ...red 4 2 2 YCrCb on B The input is taken from the IN B connector the input mode is set to 4 2 2 YCrCb the IN A connector is ignored 4 4 4 YCrCb Both IN A and IN B connectors are used as input dual link...

Страница 26: ...to enter the password again Button Description Legalizer Options are OFF or Hard clip When set to Hard clip the output from the unit is clipped at the 64 940 10 bit range This applies to both RGB and...

Страница 27: ...button in the Synchronise section of the Hardware panel All cubes on the box are written to a BZ2 zip file Browse to the location where you want the file to be saved and click Ok Once the backup is c...

Страница 28: ...Programming the colour cube slots on page 9 Checking the cubes From time to time you may want to check that the cubes in the Truelight SDI unit match a reference set of profiles and calibration data T...

Страница 29: ...sing a serial cable attached to serial port 2 The IP address will then be displayed on the Hardware panel in the Truelight application select this serial port from the Hardware port list and the IP ad...

Страница 30: ...ss truelight support filmlight ltd uk This enters your email into an automatic tracking system which will reply to you with a tracking number The tracking system is monitored by the Truelight Support...

Страница 31: ...720x486 720x576 1280x720 1920x1080 2048x1080 2048x1556 Frame rate 23 98p 24p 25p 29 97p 30p 59 94p 60p 50i 59 94i 60i PsF mode also supported Video interface 8 or 10 bits per sample 4 2 2 YCrCb 4 4 4...

Страница 32: ...Appendix A Specifications Truelight SDI unit specifications Truelight SDI User Guide 28...

Страница 33: ...nel 17 selecting remotely 20 testing 12 cursor diagnostics cursor 16 D deleting cubes 11 DHCP 7 dimensions 27 downloading cubes 11 dual link 6 E ethernet 6 7 F front panel 17 G gamut alarm cube 12 17...

Страница 34: ...rns 15 enabling remotely 22 testing cubes 12 troubleshooting 25 Truelight profile 11 truelight profile loading custom 25 Truelight root 23 Truelight software 9 Truelight software host 5 6 connecting t...

Страница 35: ......

Страница 36: ...www filmlight ltd uk...

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