eeColor LUT Box User Guide

LightSpace CMS can be used with the eeColor LUT Box for accurate 3D LUT based calibration for HDMI input displays.

With 65^3 LUTs the eeColor can provide highly accurate display calibration for professional and Home Cinema use.


Initial Operation

eeColor LUT Box

First, download the TruVue eeColor application. This application is required to upload the LightSpace CMS calibration LUTs into the eeColor LUT Box.

Before starting calibration work ensure the eeColor box is transparent when no calibration LUTs are loaded, and that there is not change in black/white levels.
With some signal configurations the black level can be lifted, and/or the peak white level reduced - this is due to incorrect EDID data communication between the signal source, the eeColor LUT box and display.

If errors are seen the 1D output LUTs within the eeColor can be used to re-scale the image path signal, as described below.


Replace the default eeColor 3D LUTs

The default LUTs that come pre-installed within the eeColor LUT Box are of no particular use for calibration purposes, so should be replaced with Light Illusion default LUTs.

To download the example Light Illusion LUTs use the downloads page. These LightSpace CMS LUTs prove the operation of the box, as well as replacing the on-screen LUT description icons with meaningful ones for calibration use.

  • Unzip the downloaded "General Media.zip" file
  • Go to directory C:\Program Files\Entertainment Experience LLC\TruVue eeColor Application\Data\3dtable\standard nonrgb led\General Media
  • Replace the contents with those from the 'General Media.zip' file
  • Connect to the eeColor LUT box using a USB 2.0 connection, and power-on
  • Startup the TruVue eeColor Application and select 'Start Download'
  • Open the options using the '+' menu button from with 'Display Type and eeColor Tables'
  • Select display type of 'Standard Non-RGB LED Display' and 'General Media'
  • Tick Tick both the 'eeColor 3D Tables' and 'Calibration Tables' within the 'Download Selection' menu
  • Start the download process and wait for it to complete

The example Light Illusion LUTs have the following effect.

  • LUT 1: Unity
  • LUT 2: Gamma Lift
  • LUT 3: Sepia
  • LUT 4: De-Sat Shadows
  • LUT 5: Inv. S Shape
  • LUT 6: Film Look

Replacing the 1D LUTs

The eeColor, for reasons best know to itself, has an output path that includes a first 1D LUT, followed by a 3x3 matrix, followed by a second 1D LUT. The first 1D LUT undoes a default 2.2 gamma, while the second 1D LUT reapplies the 2.2 gamma. It is a good idea to replace the 1D LUTs with Null versions, to avoid any potential issues.

  • Generate a default Bypass LUT within LightSpace using 'File/New'
  • Export the LUT in both eeColor 1D formats
  • Make 3 copies of each 1D LUT and re-name as 'first1dxxx.txt and second1dxxx.txt', where xxx is the LUT colour red/green/blue
  • Go to directory C:\Program Files\Entertainment Experience LLC\TruVue eeColor Application\Data\default
  • Replace the three original 1D LUTs with the new Null LUTs exported from LightSpace
  • Connect to the eeColor LUT box using a USB 2.0 connection, and power-on
  • Startup the TruVue eeColor Application and select 'Start Download'
  • Open the options using the '+' menu button from with 'Display Type and eeColor Tables'
  • Select display type of 'Standard Non-RGB LED Display' and 'General Media'
  • Tick the 'Calibration Tables' within the 'Download Selection' menu
  • Start the download process and wait for it to complete

Overcoming Scaling issues

If the Black/White levels are incorrect, due to EDID issues or similar, new 1D LUTs can be generated via the LUT Manipulation tools, or through use of the LUT Image for external LUT manipulation, and uploaded into the eeColor LUT box.

  • Generate a default Bypass LUT within LightSpace using 'File/New'
  • Use 'Edit/LUT Manipulation/Prepend/1023->64-940' to make a re-scaling LUT
    (Alternatively, export the LUT Image and use an external program to make the same adjustment)
  • Export the LUT in the 'second' eeColor 1D format
  • Make 3 copies of the 1D LUT and re-name as 'second1dred.txt', 'second1dgreen.txt', and 'second1dblue.txt'
  • Go to directory C:\Program Files\Entertainment Experience LLC\TruVue eeColor Application\Data\default
  • Replace the three original 'second1dxxxx.txt' 1D LUTs with the re-scale LUTs exported from LightSpace
  • Connect to the eeColor LUT box using a USB 2.0 connection, and power-on
  • Startup the TruVue eeColor Application and select 'Start Download'
  • Open the options using the '+' menu button from with 'Display Type and eeColor Tables'
  • Select display type of 'Standard Non-RGB LED Display' and 'General Media'
  • Tick the 'Calibration Tables' within the 'Download Selection' menu
  • Start the download process and wait for it to complete

The Output 1D LUTs will be replaced with the re-scaling LUTs.


Uploading Calibration LUTs

When using the eeColor LUT box for calibration you will need to upload the 3D calibration LUTs generated via LightSpace CMS using eeColor's own control software, and the following procedure.

Note: The correct 3D LUT format is 65^3. The 64^3 is just for checking LUTs made with other systems that purport to be eeColor compatible.

  • Go to directory C:\Program Files\Entertainment Experience LLC\TruVue eeColor Application\Data\3dtable\standard nonrgb led\General Media
  • Rename the existing LUTs to keep a copy of them
  • Copy your new LightSpace CMS generated 3D LUTs to this directory and rename as '3DLUT_2.txt", 3DLUT_3.txt', etc.
    (It is suggested to keep 3DLUT_1.txt as a Unity LUT to use to compare the before/after calibration)
  • Startup the TruVue eeColor Application and select 'Start Download'
  • Open the options using the '+' menu button from with 'Display Type and eeColor Tables'
  • Select display type of 'Standard Non-RGB LED Display' and 'General Media'
  • Tick just the 'eeColor 3D Tables' as you have previously set the 'Calibration Tables' to default or to re-scale as above
  • Start the download process and wait for the process to complete

eeColor LUT Box 3D LUT VideoScale

Depending on the display and source in use (data range, or TV level) the eeColor LUT Box may require LUTs in a particular data range.

For TV Levels, after the calibration LUT has been generated via LightSpace CMS in the normal way, use the 'Edit/LUT Manipulation/VideoScale' function to format the LUT data correctly.

For data range display workflows the re-scale will not be needed.

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