C Library Functions  - closest_color (3)

NAME
closest_color(3f) - [M_pixel:COLOR] find name of color closest to given RGB values (LICENSE:PD)

CONTENTS

Synopsis
Description
Options
Returns
Examples
Author
License

SYNOPSIS
definition: 

   subroutine closest_color_name(r,g,b,closestname)


    real,intent(in)               :: r,g,b
    character(len=20),intent(out) :: closestname

DESCRIPTION
closest_color_name() returns the closest name for the given RGB values. Most X11 Windows color names are supported.

OPTIONS
R red component, range of 0 to 100
G green component, range of 0 to 100
B blue component, range of 0 to 100

RETURNS
CLOSESTNAME
  name of color found closest to given RGB value</li>

EXAMPLES
Sample program 

       program demo_closest_color_name
       use M_pixel, only : closest_color_name
       implicit none
       character(len=100) :: string ! at least 20 characters
          string=’ ’


          call closest_color_name(100.0,  0.0,  0.0,string)
          write(*,*)trim(string)


          call closest_color_name(  0.0,100.0,  0.0,string)
          write(*,*)trim(string)


          call closest_color_name(  0.0,  0.0,100.0,string)
          write(*,*)trim(string)


       end program demo_closest_color_name
Results: 

       red
       green
       blue

AUTHOR
John S. Urban

LICENSE
Public Domain

Nemo Release 3.1 closest_color (3) February 23, 2025
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