IS-mini

ColourSpace Integration

IS-mini operation and function is controlled via the Hardware Options menu, accessed via the Profiling window.

For a User Guide on the workflow used for display calibration see the 3D LUT Calibration guide, combined with the specific IS-mini information contained within this page.

Initial Setup

• If required, make sure the correct drivers are installed
  (If necessary, verify via Windows Device Manager)
• Connect input/output signal cables to the IS-mini, connecting the signal out to the display to be profiled/calibrated
  (Make sure a valid input signal is being input into the IS-mini)
• Connect the IS-mini to the ColourSpace PC via a USB cable, and start ColourSpace
• Set the desired set-up options via the Settings menu, as required
• Open a ColourSpace Profiling window, select Hardware Options, and select IS-mini from the Hardware drop-down list
• Select Connect
  (To make sure there is no existing calibration data active within the selected Profile/Load/LUT/Slot, and associated colour space selection, etc., select Unity Bypass from the Select LUT option, and press Upload)
• Using Calibration Patches select the desired patch option to use for profiling
  (If possible, Auto uses the patch settings defined within the ColourSpace Settings window, or else the closest available patch settings - Custom uses the IS-mini Options to set patch size)
  Note: The keyboard 'O' key can be used within the Manual Measure and Hardware menus to quickly Disable/Enable the TPG

As soon as a Calibration Patches selection is made the output of the IS-mini will display the patch colour as defined within the ColourSpace Measure and Characterisation menus.

Profiling Operation

To use the IS-mini as a Patch Generator with ColourSpace navigate to the desired profiling mode - Manual Measure or Display Characterisation.

The output of the IS-mini 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, with the IS-mini displaying the required patches on the display being profiled.

TV Legal Profiling Workflows

If the image signal path is TV Legal, when profiling you may need to use the Patch Scale function within the Settings menu to re-scale the colour patches correctly.

Note: To gauge if a patch rescaling via the Patch Scale function is needed use the Manual Measure menu, and use the sliders to toggle the IS-mini patch output colour between the Black patch [000] and Grey [013 - 8-bit]. If there is NO visible or measurable difference between the two patches a rescaling will be required as the output signal is being clipped.

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.

Depending on the settings used within the IS-mini, and the signal path in use, LUTs may need to be pre-process via Video Scale before a LUT is uploaded for Legal Range workflows.

Calibration Guides

3D LUT Calibration Manual Calibration