Maxwell Help

  • Glossary

    • Color Aim
      The reference color list which Maxwell uses when comparing new measurements in a track. The term '''Color Aim''' is used instead of 'reference' so as to not be confused with 'Reference Set.'
      Metrics are the different forms of measurement analysis which Maxwell calculates for your tracks. Examples of Metrics include Average delta-E, Paper White, and 95th Percentile
      Patch Selector Set
      A list of colors that is used to sub-select color patches from a measured target. These are specified within a Metric and allow for metrics to focus on a particular set of patches such as neutrals, solids, brands colors and so forth
      Reference Set
      A Reference Set is a collection of Metrics, a Color Aim and parameters that define the rules for scanning and the methods for grading measurements for a Track
      Target Reference
      A collection of patches that defines which colors are measured from a printed target. It may also contain target dimensions and other measurement instructions for color instruments
    • Accuracy
      How closely something corresponds to its intended value. In color, accuracy typically refers to how well a color matches a particular Color Aim (or reference) color - typically this match is calculated using delta-E.
      A unit of measure that calculates and quantifies the difference between two colors. Several equations have evolved to calculate this value, including delta-E(76) and delta-E(2000). delta-E(2000) is recommended for most color differencing calculations as it corresponds most closely with perceived differences by human observers
      The specific range of colors seen by or reproduced by a device.
      The ability for something to consistently create the same outcome. In color, repeatability often refers to the ability of a printer or press to consistently create the same color between separate samples and over time. This is sometimes referred to as precision but we find this term is often confused by users with Accuracy. Repeatability is typically calculated using delta-E values from Accuracy grading and aggregating those values using standard deviation, high-low ranges or other methods
      Tolerances are high or low value ranges for Metrics to be graded as having passed, failed, or be in a warning condition. For color, tolerances are often set with delta-E values which are only positive and range from 0 to 10 or more. Values higher than 10-12 are typically outside an acceptable visual color match for most viewers