Active LUT function

Any LUT generated within ColourSpace, or loaded from an external source, can be verified for operation using the Active LUT function.

The automated characterisation & profiling through an Active LUT verifies any LUT for accuracy before upload into the final application, be that monitor, LUT Box, or graphics program.


Active LUT

With Active LUT selected, all calibration patches sent to the display via ColourSpace, or via an external TPG, are pre-processed via the LUT, so verifying the LUT for calibration accuracy.

ColourSpace Active LUT Verification

  1. ColourSpace
    Patch Generation

    Initial Patch colour defined by ColourSpace

  2. Calibration LUT
    Active LUT

    Active LUT held with ColourSpace, modifies the patch triplet colour before being sent to the TPG

  3. Patch Display
    Patch Generator

    The Test Patch Generator (TPG) located after the LUT send the modified patch colour to the display
    (Can be either the internal ColourSpace TPG or an external TPG)

  4. HDMI Cable
    HDMI Connection

    HDMI RGB connection to the display
    (SDI connection for SDI monitors)

  5. Display Profiling
    Display Measurement

    Active LUT corrected patch colour displayed and measured on monitor

After the profile is complete the various graphs with ColourSpace can be used to assess the LUT accuracy.

As the Active LUT function is a direct assessment of the LUT in its native ColourSpace form, it is a direct assessment of the LUT itself.

If when the LUT is uploaded and re-verified there are any differences, the differences will obviously be with the LUT processing within the LUT application. For more information see the Active LUT vs LUT Upload page.