bionic (3) VistaIOGetPixel.3.gz

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>