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>
