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                                                               239
              SECTION 4.5                                                                                Color Spaces




                        Conversion             R, G, B               Device color values
  X, Y, Z             from CIE-based                                  (depending on
                                               C, M, Y, K
                         to device                                        results of
                        color space            gray                     conversion)

                    (not specified by PDF)




  R, G, B                                Component(s)
                                           of device’s
                                            process
                                          color model
                        Conversion
                        from input                                                                                 Device’s
                       device color                                                                                process
 C, M, Y, K                                                                                                       colorant(s)
                          space to
                          device’s
                       process color
                           model
                                                                Transfer                     Halftones
   gray                                                        functions                       (per
                                                                  (per                      component)
                                                              component)
                    UCR, BG



   tint                                                                                                           Any single
                                                                                                                    device
                                                                                                                   colorant


    n
components                                                                                                       Any n device
                                                                                                                  colorants

                                                            TR, HT                         HT




                                             FIGURE 4.13 Color rendering

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