VistaIOGetPixel3
Get and set pixel values
Usage
#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. |
Overview
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.
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.
Releases
Unchanged in 6 releases since Debian 8 (Jessie).