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>