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An achromatic color scale that commonly has ten equal gradations ranging from black to white. The grayscale is used in photographic processing, computer graphics and television. Additionally, grayscale cards are used in colorfastness tests to evaluate differences in color shades and strengths.

Synonyms and Related Terms

Grauskala (Deut.); échelle de gris (Fr.);

Brand names: Kodak Neutral Test Card

Sources Checked for Data in Record

  • ASTM, Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials, Annual Book of ASTM Standards, Section 14, General Methods and Instrumentation, ASTM, G113, 1371-1373, Sep-94
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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