1YIQRGB(3NCARG)                   NCAR GRAPHICS                  YIQRGB(3NCARG)
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NAME

6       YIQRGB - Converts a color specification given in the YIQ color space to
7       the equivalent color specification in the Red, Green, Blue (RGB) color
8       space.
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SYNOPSIS

11       CALL YIQRGB (Y, I, Q, R, G, B)
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C-BINDING SYNOPSIS

14       #include <ncarg/ncargC.h>
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16       void c_yiqrgb (float y, float i, float q, float *r,
17       float *g, float *b)
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DESCRIPTION

20       Y           (REAL, input, range [0.,1.])  specifies the color component
21                   of a television signal that is shown on black-and-white
22                   televisions; Y minimizes the effect of two colors appearing
23                   different to the human eye but mapping to similar
24                   monochrome intensities.
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26       I           (REAL, input, range [-.6,.6])
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28       Q           (REAL, input, range [-.52,.52])
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30       R           (REAL, output, range [0.,1.])  represents the red intensity
31                   component of the output color in RGB color space.
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33       G           (REAL, output, range [0.,1.])  represents the green
34                   intensity component of the output color in RGB color space.
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36       B           (REAL, output, range [0.,1.])  represents the blue
37                   intensity component of the output color in RGB color space.
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C-BINDING DESCRIPTION

40       The C-binding argument descriptions are the same as the FORTRAN
41       argument descriptions.
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EXAMPLES

44       Use the ncargex command to see the following relevant examples: tcolcv,
45       fcce02.
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ACCESS

48       To use YIQRGB or c_yiqrgb, load the NCAR Graphics libraries ncarg,
49       ncarg_gks, and ncarg_c, preferably in that order.
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SEE ALSO

52       Online: colconv, hlsrgb, hsvrgb, rgbhls, rgbhsv, rgbyiq, ncarg_cbind.
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54       Hardcopy: NCAR Graphics Fundamentals, UNIX Version
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57       Copyright (C) 1987-2007
58       University Corporation for Atmospheric Research
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60       This documentation is free software; you can redistribute it and/or
61       modify it under the terms of the GNU General Public License as
62       published by the Free Software Foundation; either version 2 of the
63       License, or (at your option) any later version.
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65       This software is distributed in the hope that it will be useful, but
66       WITHOUT ANY WARRANTY; without even the implied warranty of
67       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
68       General Public License for more details.
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70       You should have received a copy of the GNU General Public License along
71       with this software; if not, write to the Free Software Foundation,
72       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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76UNIX                              March 1993                    YIQRGB(3NCARG)
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