divide
[ XITE Reference Manual | XITE home ]
Name
divide - divide two images pixel by pixel
Syntax
divide [-s <scale>] [-t <title>]
<input1> <input2> <output>
Description
divide divides, pixel by pixel, for each pair of
bands, input1 on input2, and multiplies with scale.
output(x,y) = input1(x,y) / input2(x,y) * scale
If divisor is zero, we look at dividend. If dividend
is zero, result is set to zero, otherwise result is
set to "max".
All pixel types are accepted, as long as the two
input images have the same pixel type for each pair
of bands. The output image will be of the same type.
Resulting values outside the domain of the actual
pixel type is truncated to the nearest legal value.
Default <scale> value is 1.0. <title> is optional
title of image. Default is "Image division".
See also
multiply(1), scale(1)
Restrictions
Only the largest rectangle common to each pair of bands
in the two input images is divided.
Author
Tor Lønnestad, BLAB, Ifi, UiO
Examples
divide mona1.img mona2.img monaDiv.img
Id
$Id: divide.c,v 1.34 1997/05/27 14:47:50 svein Exp $