In the right section of the Create Linearization Profile dialog, enabling Expert Mode makes the Ink Cut tab available.

The following settings are available in the Ink Cut tab in Expert Mode:

• Method for CMY [8] – defines the algorithm used to determine the Ink Cut value for each color channel. The following options are available for the Cyan, Magenta and Yellow channels:
  • Chroma – the Ink Cut is determined based on the saturation values of the respective channel.
  • Reference Color Space – the Ink Cut is determined based on the lowest ∆E00 deviation from the selected reference color space.
• Method for Black [8] – the following options are available for the Black channel:
  • Lowest L* – the Ink Cut is determined based on the lowest lightness value (L*) of the channel.
  • Reference Color Space – the Ink Cut is determined based on the lowest ∆E00 deviation from the reference color space.
• Reduction [9] – specifies an offset value in ΔE00 (range: 0 to 1) by which the automatically determined Ink Cut value can be reduced.
• Set manually [10] – enable this option to enter the Ink Cut value manually for the respective channel. When enabled, the Reduction [9] option is disabled and the Limit at [11] field becomes editable.
• Limit at [11] – displays the automatically determined Ink Cut value as a percentage. If the Set manually option is enabled, the field becomes editable and the entered value can be adjusted to the desired limit.
• Calculate Ink Cut [13] – click this button to recalculate the Ink Cut for all channels based on the selected methods and offset values. The results are displayed in the Limit at [11] column.
• Reset to Defaults [12] – click this button to reset all Ink Cut parameters to their default settings.
• CMYK Working Color Space [14] – displays the CMYK working color space used for profile calculation. In the Linearization step, this is usually identical to the currently selected CMYK working color space of the application under Administration > Settings > Color Management.

Figure 3: The Ink Cut tab of the Create Linearization Profile dialog in Expert Mode

The Transition tab is displayed in the Create Linearization Profile dialog only if the printing system has light inks, such as Light Cyan, Light Magenta, Light Yellow or Light Black. This tab defines, for each light ink, how the transition between the "light ink" and the corresponding "dark ink" is applied. Each available light ink has its own section with the following settings:

• Set Endpoint to [16] – defines which axis of the transition curve the value entered in the Endpoint [15] field refers to. The following options are available:
  • X-Axis – the endpoint refers to the input tone value. The light ink ends at the defined tone value on the X-Axis and is no longer used from this point onward.
  • Y-Axis – the endpoint refers to the amount of light ink. At an input tone value of 100%, the light ink is used up to the value defined in Endpoint on the Y-Axis.
• Endpoint [15] – depending on the Set Endpoint to [16] option, defines either the input tone value at which the light ink ends (X-Axis) or the amount of light ink used at an input tone value of 100% (Y-Axis). The default value is 100 %.
• Start value of Dark Ink [18] – defines the input tone value from which the "dark ink" is added to the transition. Below this tone value, only the light ink is used. The default value is 20%.
• Highest value of Light Ink [17] – defines the highest amount of light ink used in the transition. The default value is 50%. Please note that the configured value may not be reached in some cases, particularly when the difference between the light ink and the dark ink is very small.
• Reset to Defaults [19] – click this button to reset all transition parameters to their default values.

Figure 4: The Transition tab of the Create Linearization Profile dialog in Expert Mode

In the right section of the Create Linearization Profile dialog, enabling Expert Mode makes the Measurement Data Correction tab available.

The following settings are available in the Measurement Data Correction tab in Expert Mode:

• Correct outliers [20] – enable this option to automatically detect and correct outliers in the measurement data during profile calculation. A maximum of two consecutive outliers can be corrected.
• Measurement Data Smoothness [21] – defines the degree to which the measurement data is smoothed before the profile is calculated. The following options are available:
  • Without – the measurement data is used without smoothing.
  • Low – a low degree of smoothing is applied (default setting).
  • Medium – a medium degree of smoothing is applied.
  • Strong – a strong degree of smoothing is applied.
• Reset to Defaults [22] – click this button to reset the measurement data correction settings to their default values.

Figure 5: The Measurement Data Correction tab of the Create Linearization Profile dialog in Expert Mode