Spot color black generation options

Spot color black generation options

VISU profiles allow very detailed control on how spot colors are calculated as they are calculated independently from the profile.
The following settings can be defined using the options button in the lower right corner of the Spot Color list in Calibrator:
  • Black start: Defines the black start point
  • Black max: The maxium amount of black allowed in spot colors
  • Optimize black channel: Allows the spot color to have increased black
  • Hi-res gradation: When a spot color is out-of-gamut then this option is off then it will calculate the closest match of the spot color and when break-downs are calculated they are relative to the found match. So gradations will look equally spaced. Using hi-res gradations it will calculate the break-downs individually. As long the break downs are in-gamut you'll get accurate colors, but all out-of-gamut break downs will all map the more-or-less the same point.
  • Method: Allows to select different strategies for calculating the spot color accuracy and how to map out-of-gamut colors.
  • Force TAC: Ensures that the spot color will not exceed the TAC, even if a better match is in reach.

    • Related Articles

    • Spot Color Handling

      How PrintFactory handles spot colors in jobs Jobs may contain spot colors. If so, PrintFactory will check the profiles and libraries for these colors in a given sequence. If the spot color cannot be found, an error will be generated. This is how ...

    • Separation and Black generation

      The K in CMYK stands for “Key”, NOT black as many might have you believe. The Key plate, in traditional color separations, is the plate that holds the detail in the image. In CMYK this is usually done with black ink. In the modern color-managed ...

    • Spot Color Preferences

      The Spot Color Generation Preferences can be located in Calibrator in the bottom right hand corner. These preferences play a crucial role in determining how spots are calculated. Here's a breakdown of each setting: Black Start: This setting ensures ...

    • Spot Color Certification

      Spot colors can be certified, either as part of ISO 12647-7 strip which supports spot color certification or spot colors only. This is available from V6.5.1 How When certifying spot colors in a proofing context there are a number of items to take in ...

    • Spot Color Tuning

      Spot colors can be manually fine-tuned to meet special requirements or to improve the visual match. The spot color tuning is performed by means of a visual chart which displays several variations of a selected spot color. After printing the chart, ...