Patents by Inventor Ufuk Agar

Ufuk Agar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Determining inverse transfer functions of output devices having limited bit depth
    Patent number: 7483171
    Abstract: An inverse transfer function of a limited bit depth output device having N primary colorants (e.g., a six-color printer) is determined. An N-dimensional hypercube that has been tessellated into a set of simplices is accessed, and the set of simplices is navigated through to select a subset that defines a one-to-one mapping of device-independent color space to device primary space.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: January 27, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ufuk Agar, Miheer Bhachech, Gabor Herman
  • Color mapping methods, data signals, articles of manufacture, and color mapping apparatuses
    Patent number: 7342593
    Abstract: Color mapping methods, data signals, articles of manufacture, and color mapping apparatuses are described. According to one aspect, a color mapping method includes providing a spectral model corresponding to a respective image forming device configured to utilize a plurality of available colorants of a device dependent color space to form a plurality of hard images, providing a colorimetric value of a device independent color space, and searching a plurality of weighting values for individual ones of the available colorants to associate the colorimetric value with a plurality of weights of the available colorants.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: March 11, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Ufuk A. Agar
  • Determining inverse transfer functions of output devices having limited bit depth
    Publication number: 20060055946
    Abstract: An inverse transfer function of a limited bit depth output device having N primary colorants (e.g., a six-color printer) is determined. An N-dimensional hypercube that has been tessellated into a set of simplices is accessed, and the set of simplices is navigated through to select a subset that defines a one-to-one mapping of device-independent color space to device primary space.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 16, 2006
    Inventors: Ufuk Agar, Miheer Bhachech, Gabor Herman
  • Interpolation using at least one boundary point in a boundary surface
    Publication number: 20040252131
    Abstract: An indication of a target point in a first color space is received. A set of interpolation points in the first color space are identified from which to interpolate a value of the target point in a second color space. The set of interpolation points comprises at least one boundary point in a boundary surface defined by a colorant boundary.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Inventors: Jay S. Gondek, Ufuk A. Agar, Morgan Thomas Schramm
  • Color mapping methods, data signals, articles of manufacture, and color mapping apparatuses
    Publication number: 20040085326
    Abstract: Color mapping methods, data signals, articles of manufacture, and color mapping apparatuses are described. According to one aspect, a color mapping method includes providing a spectral model corresponding to a respective image forming device configured to utilize a plurality of available colorants of a device dependent color space to form a plurality of hard images, providing a colorimetric value of a device independent color space, and searching a plurality of weighting values for individual ones of the available colorants to associate the colorimetric value with a plurality of weights of the available colorants.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 6, 2004
    Inventor: Ufuk A. Agar