A system and method for automatically producing product mix and application information include a display for depicting a plurality of indicators arranged on a chart. A sensor is used for sensing one of the indicators positioned within the chart. A processor-based system retrieves from a database the mix and application information based upon the sensed indicator. The retrieved mix and application information is provided for mixing paint components.

A computer-implemented method is for calibrating a digital image of skin tissue. The digital image includes a calibration marker located on or near the skin tissue. The calibration marker has benchmark elements wherein at least one benchmark attribute value of at least one attribute type. The computer-implemented method detects the calibration marker within the digital image; and detects the benchmark elements within a cropped portion of the digital image that includes the calibration marker. The computer-implemented method further includes, for the respective benchmark elements, determining at least one depicted attribute value of the at least one attribute type based on pixels of the digital image located within the respective benchmark elements; and calibrating the digital image by correcting deviations between the depicted attribute values and the benchmark attribute values associated with the respective benchmark elements.