Patents Examined by Ba Nuynh
  • Patent number: 6046723
    Abstract: A method for achieving color-appearance matching for an image viewed in different surround conditions, the method comprises the steps of forming signals representing an original image; and mapping the original image signals through a transformation that alters image luminance contrast by a factor of substantially 1.01 to 1.15 for an original image viewed in a light surround to a reproduced image to be viewed in an average surround; substantially 1.01 to 1.22 for an original image viewed in a light surround to a reproduced image to be viewed in dim surround; substantially a range of 1.01 to 1.29 for an original image viewed in a light surround to a reproduced image to be viewed in an dark surround; substantially a range of 1.01 to 1.11 for an original image viewed in an average surround to a reproduced image to be viewed in an dim surround; substantially a range of 1.01 to 1.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: April 4, 2000
    Assignee: Eastman Kodak Company
    Inventors: Cathleen M. Daniels, Edward J. Giorgianni, Mark D. Fairchild