Calibration Client User Guide

LightSpace CMS Java App Test Patch Generator

Initial Operation

Calibration Client

When LightSpace CMS is installed a sperate Java Application (called 'Calibration Client') is installed along with the main software, and can be seen within the main 'Programs' menu.

This application can be copied and loaded into any other system (PC/Mac/Linux) running Java to enable calibration of displays over a facility wide network.

The Calibration Client can be seen in the 'Installed programs' list within the LightSpace PC. To copy it to any other PC/Mac/Linux system navigate to the LightSpace CMS installation folder and copy the 'CalibrationClient.jar' from within the 'Calibration Client' folder, if installing on a Mac or Linux system. If installing on another PC system the easiest way to install the Calibration Client is to simply install the Free ZRO license version of LightSpace CMS.

Calibration Client Java App

This means that with LightSpace CMS running on PC, with probe attached, the patches can be displayed on any display connected to any other PC/Mac/Linux system on the same network, or on the same PC as LightSpace. using the Calibration Client Java App as an alternative patch generator to the inbuilt LightSpace patch window.

Using the Calibration Client Java App on the same PC as an alternative patch generator to the built-in LightSpace one can be very useful, as the Java App patch size can be controlled very precisely, and run in full-screen mode when using Extended Desktop to profile an attached display via an HDMI connection.

Calibration Client Extended Desktop

Note: If using separate PC/Mac/Linux systems to run the Java App, make sure both the LightSpace PC and the Calibration Client device are connected on the same network. A hardwired ethernet network is preferred, as WiFi connections can suffer interrupts causing sync problems).

LightSpace Connect Network

LightSpace CMS is now connected to the 'Calibration Client' Java App, and the java app patch window will mimic the patch colour displayed within LightSpace.

Prior to profiling make sure the the Brightness and Contrast settings for the display have been set as per the Initial Display Set-up guide.

Note: If you have any connection issues check for any Firewall settings preventing connection.

Patch Indent/Size & Extra Delay

LightSpace Connect Network

The Patch Indent/Size & Extra Delay controls within the LightSpace Network Manager can be used to set any specific patch size and position for display profiling, as well as a delay for probe measurement.

The 'Diagonal' box enables the selection of patches based on the ICDM Lxx sizes, which are defined as a percentage of the screen diagonal size. The 'Area' box shows the equivalent screen area percentage for the selected patch. It is possible to enter the desired area percentage manually.

The 4 indent values are also in percentage terms, and can be used to set a Custom width and height of the patch window, as well as the position.

To reposition the patch you simply add/subtract the same value from the apposing percentage boxes, which will reposition the patch, while maintaining the same patch size.

The 'Extra Delay Time' setting is duplicate of the same setting with the 'Options' menu, as allows for a delay time in seconds to be set before the probe starts reading after a patch change has occurred. This is required when using an external patch generator (such as LightSpace Connect) with an in-built delay, meaning the patches on the display being profiled occur out of sync (delayed) with respect to the patch changes within LightSpace. Such a delay is easy to see visually, and a corresponding value entered to counter the visual delay.

Extra Delay

Note: If using an external patch generator that has no understanding of patch size and/or background colour, set the Indent/Size controls to 0%, and keep the Background Colour set to the default black.

Note: The Network Manager can be accessed during a Display Characterisation, enabling the patch size, position, and BG colour to be adjusted during profiling. Depending on the patch generation system being used, it may be preferable to use the 'Pause' button within the Calibration Status window, to pause the profiling before making such adjustments.

Profiling Operation

If not already done (for example if the Network Manager has been accessed directly) to activate the Java App Patch Generator navigate to the desired profiling mode within LightSpace - Calibration Interface, or Display Characterisation.

When the patch window colour is changed within LightSpace the Java App window will also change.

Note: unlike other external Patch Generators there is no need to activate the internal floating patch window within LightSpace.

Profiling can then be performed as normal, using the probe connected to LightSpace, and with Calibration Interface displaying the required patches on the display to be profiled.