Abstract:
A set of color gages for assisting in selecting harmonious color combinations in accordance with those found in nature and the method of using such gages. In nature all colors can be classified into one of three groups called Solis, Aero and Aqua. All colors within each one of these three groups are compatible with each other, i.e., appear harmonious to the human eye. In addition, Aero colors are compatible with either Solis or Aqua colors. Solis and Aqua colors are not compatible. The gages are preferably circular, and contain a plurality of colored segments. The colored segments of the color gages are Solis, Aero, and Aqua versions of each of the six colors red, pink, yellow, green, purple, white, brown, and blue, with the exception of Aqua Brown and Solis Blue since these colors do not appear in nature. The colored segments can be compared to a selected dominant color to determine which of the three groups the dominant color belongs, and to determine which group's colors should be selected in order to achieve harmonious color combinations in accordance with natural principles.
Abstract:
There is implemented a profile producing high in general-purpose properties. A first patch group consisting of patches of which colors are relatively near the saturated color is disposed in front in read order determined beforehand, and a second patch group consisting of patches of which colors are relatively near neutral tints is disposed in the rear.
Abstract:
A leaf color chart, calibration table and assessment chart and method for determining the nutrient status of a field crop such as rice. The leaf color chart has a palette of colored panels held within a planar support structure that have the same spectral reflectance characteristics as exhibited by a plant. In one embodiment the colors of the panels are defined by red-green (a*) and blue-yellow chromaticity (b*) and luminescence (L*) variables and are partitioned according to intervals in the blue-yellow scale. The calibration table is an array of percent nutrient values indexed according to the color panels of the leaf chart and the variety of plant. The assessment chart includes a graph of nutrient level values from the calibration table compared to the plant growth stage for various plant varieties and indicates the status of the crop as being deficient, adequate, critical or excessive.
Abstract:
A system comprising a plurality of comparison samples configured to substantially simulate the appearance of a keratinous element. Each comparison sample may be configured to substantially simulate both a color and an appearance characteristic other than color of the keratinous element.
Abstract:
Methods and apparatus for calibrating a color measuring instrument with a color standard and verifying the color standard and calibration are provided. One method includes providing a color standard having a surface with at least two different colors (preferably arranged for a simultaneous color measurement), calibrating the instrument, and verifying that said color standard is an authorized color standard of a predetermined specification and that the calibration of the color measuring instrument has achieved predetermined specified results. Some of the provided methods and apparatus use a photosensitive portion of the color standard that changes color in a known way when exposed to a predetermined dose of light. Various color standards for use with this invention are provided.