average
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Name
average - computes the average of several bands in an
input image
Syntax
#include <xite/arithmetic.h>
int average( IMAGE inimg, ID_BAND outband,
int Scale );
Description
Computes the average image of two or several bands of an
image. Grey levels of the output average image will be
multiplied by a Scale (default Scale is 1.0).
(inimg[1] + inimg[2] +........+ inimg[n]) / n * Scale
The output image will be of pixeltype double.
Restrictions
Input image should not have pixels of type "complex".
Return value
0 => OK
1 => Unknown pixeltype of input band
Author
Yogesan, BLAB, Ifi, UiO
Id
$Id: average.c,v 1.31 1997/05/27 14:47:19 svein Exp $