While I sit here relaxing in the sun, waiting for the first beer of the day, here's a bit more info on the two new LUT Tools.
The first takes your existing LUT and separates it into its 1D and 3D components.
This is exactly as is done with some LUT Upload options where the hardware has separate Front 1D and 3D upload options.
What is key with this function is the separation of the 1D from the 3D is a true separation, meaning the effect of the 1D component is removed from the full volumetric 3D component, leaving the 3D component without any gamma adjustment embedded within it.
The Grey Axis Replace function does just that, and replaces just the grey axis values with those from an alternative LUT, or with null values if None or Default Unity is chosen as the second LUT option.
This will leave any gamma changes in the original 3D LUT component, which in some instances may be desirable.
The likely main application for either is where a manual grey scale adjustment is made, and the user wishes to keep that exactly as is, without the 3D LUT making any additional alterations to the grey scale, regardless if they should be made or not.
Or for displays with a large 1D LUT capability as a Back 1D, that can be calibrated using a large profile patch set with a large LUT Generation Size defined, and uploaded initially to the Back 1D slot, and then a smaller patch set used to re-profile with the Back 1D active, and just the volumetric 3D LUT component uploaded, using either of the new options as desired, using a smaller LUT Generation Size if desired based on the actual 3D LUT size the display uses.
(Most hardware with both 1D and 3D LUT capability has a far larger 1D LUT size, with a smaller 3D LUT.)
As always with ColourSpace, there are no set defined workflows, leaving the user to be able to choose what is best for any given calibration situation, based on their knowledge and understanding.
We are most definitely not striving for a 'Calibration For Dummies' approach, as with Calman.
Steve
Steve Shaw
Mob Boss at Light Illusion