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AVERAGE

Section: C Library Functions (3)
Updated: 16 Mar 1998
Index

NAME

average - computes the average of several bands in aninput 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 animage. Grey levels of the output average image will bemultiplied 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 $

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