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Computerized memory mapping method for transforming color data

  • US 5,732,151 A
  • Filed: 07/10/1997
  • Issued: 03/24/1998
  • Est. Priority Date: 03/03/1995
  • Status: Expired due to Term
First Claim
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1. A computerized memory mapping method for transforming color data representative of an image from a predetermined color pixel data set for said image generated by a first device and for displaying the image with a second device using transformed color data, said second device having a range of output threshold signal abilities, comprising the steps of:

  • receiving said predetermined color pixel data set as a first color space construct data set for said image to be displayed;

    correcting said predetermined color pixel data set for device-dependent variables;

    transforming corrected predetermined color pixel data set from said first color space construct data set into a second device color pixel data set for a second color space construct inherent to said second device;

    for each output threshold signal ability of said second device and the predetermined color pixel data set for said image by said first device, determining each output signal to be generated for each primary color in each said color in said second device color pixel data set;

    storing each said output signal second device color pixel data set as a separate matrix of cells of indexed output signal values for each said color in said second device color pixel data set such that each cell of each matrix is indexed to a corresponding single data point of said predetermined color pixel data set; and

    for each pixel of said image,selecting the separate matrix of indexed output signals corresponding to a data point of said predetermined color pixel data set for said pixel of said image,determining which output threshold signal is to be generated corresponding to the data point value of said predetermined color pixel data set for said pixel of said image,selecting the cell of the selected matrix based upon said output threshold signal to be generated,sending from said selected cell the indexed output signal value for each said second color space construct stored therein, anddisplaying a pixel color of said second device color pixel set corresponding to said indexed output signal value.

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