Brompton Technology

ColourSpace Integration

Brompton integration is controlled via the Hardware Options menu, accessed via the Profiling window.

Initial Setup

For specific Brompton Video Processor operation, please refer to Brompton's own user guides.

• If required, make sure the correct drivers are installed
  (If necessary, verify via Windows Device Manager)
• Connect input/output video signal cables to the Video Processor
  (It may be necessary to have a valid video signal input into the processor)
• Connect the Brompton Video Processor to the ColourSpace PC via a network cable, and start ColourSpace
  (Make sure IP Control is enabled in the Brompton system)
• Open a ColourSpace Profiling window, and set the desired options via the Settings menu, as required
• Select Hardware Options, and select Brompton from the Hardware drop-down list
• Enter the correct IP address, and select Connect
• To make sure there is no existing calibration data active, and associated colour space selection, etc., select Unity Bypass from the Select LUT option, and press Upload
• Using the Calibration Patches option enable patches for profiling
  (If possible, Auto uses the patch settings defined within the ColourSpace Settings window, or else the closest available patch settings)
  Note: The keyboard 'O' key can be used within the Manual Measure and Hardware menus to quickly Disable/Enable the TPG

Potentially, when Unity Bypass data is Uploaded all settings will be nullified. Should it be desired that different LUTs and other settings remain as defined, upload the Default Unity LUT, which uploads just the LUT, and does not reset any additional settings. Set necessary settings, such as Brightness/Contrast/Black-Level, before any LUT Upload.

As soon as a Calibration Patches selection is made the output of the Brompton Video Processor will display the patch colour as defined within the ColourSpace Manual Measure and Characterisation menus.

Brompton Options

The right hand Brompton Options menu contains capabilities specific to the Brompton Video Processor, including LUT enable/disable, in-built Test Patterns, and specific colour management options.

Please refer to Brompton's own user guides for further details operation information.

Profiling Operation

To profile the Virtual Set screens via the Brompton Video Processor using ColourSpace navigate to the desired profiling mode - Manual Measure or Display Characterisation.

The screens connected to the Brompton will mimic the colour displayed, using the patch settings defined via the Hardware Options and Settings menus.

Profiling can then be performed as normal, using the probe connected to ColourSpace, and with the Brompton connected screen displaying the required patches.

Image Sequence Probe

As an alternative to direct profiling with a probe, the Image Sequence Probe is a very unique ColourSpace capability, and in essence is a form of virtual probe that is capable of taking measurements from an image sequence.

In this way, an entire image capture path can effectively be profiled, including screen, lens, camera, making this a very unique calibration approach for difficult colour management signal paths, such as with Virtual Sets.

For more information see the Image Sequence Probe page of the website.

LUT Generation

After profiling, a Calibration LUT can be generated as normal within ColourSpace LUT Tools, and saved into the library.

When generating the calibration LUT within ColourSpace, the best accuracy is attained by using a large LUT Generation Size, especially when the LUT Upload will be a combination of 1D LUT and 3D LUT, regardless of the LUT sizes used within the monitor.
(Note: Many hardware manufacturers do not advertise the LUT sizes used.)

The benefit in using a large LUT Size is twofold.
First, when the final uploaded 3D LUT size is small there is still major benefit in using a far larger LUT Generation size within ColourSpace, due to a combination of standard Nyquist over sampling, as well as a more accurate extraction of the final smaller 3D LUT from the larger generated LUT.
And second, setting a larger native 3D LUT size results in increased resolution for any 1D LUT extracted from the 3D LUT and uploaded independently, or as part of the background LUT Upload process.
See: LUT Generation Size.

LUT Upload

With the LUT still held within ColourSpace navigate back to the Hardware Options menu, and select the desired LUT from within the Select LUT options, and Upload to the Brompton processor.

Calibration Guides

3D LUT Calibration Manual Calibration