NAME

       VistaIOGetPixel, VistaIOSetPixel - get and set pixel values

SYNOPSIS

       #include <vistaio.h>

       VistaIODouble VistaIOGetPixel (image, band, row, column)
              VistaIOImage image;
              int band, row, column;

       void VistaIOSetPixel (image, band, row, column, value)
              VistaIOImage image;
              int band, row, column;
              VistaIODouble value;

ARGUMENTS

       image     Specifies the image containing the pixel.

       band, row, column
                 Specify the band, row, and column of the pixel.

       value     Specifies the pixel's new value.

DESCRIPTION

       VistaIOGetPixel   fetches   the  value  of  the  specified  pixel  and  returns  it  as  a
       VistaIODouble, casting it from the image's actual pixel representation if necessary.

       VistaIOSetPixel sets the specified pixel to value, casting it to the image's actual  pixel
       representation if necessary.

RETURN VALUES

       VistaIOGetPixel returns the value of the specified pixel.

SEE ALSO

       VistaIOImage(3),

NOTES

       If  the  image  is  known  to have a particular pixel representation then the VistaIOPixel
       macro (see VistaIOImage(3)) can be used, instead, yielding greater efficiency.

AUTHOR

       Art Pope <pope@cs.ubc.ca>

       Adaption to vistaio: Gert Wollny <gw.fossdev@gmail.com>