MAN page from Mandrake Other XITE-3.3-3.i386.rpm
MULTIPLY
Section: User Commands (1)
Updated: 16 Mar 1998
Index
NAME
multiply, fftMult - multiply two bands pixel by pixel
SYNTAX
multiply [-s <scale>] [-t <title>]
<input1> <input2> <output>
fftMult <inimage1> <inimage2> <outimage>
DESCRIPTION
multiplycalculates, pixel by pixel, for each pair ofbands, the product of
input1,input2and
scale.
output(x,y) = input1(x,y) * input2(x,y) * scale
fftMultis retained for compatibility with previous XITEversions. It is a script which invokes multiplywithoutoptions.
OPTIONS
- -s scale
- Default 1.0.
- -t title
- Optional title of image. Default is "Image product".
SEE ALSO
multiply(3),
divide(1),
absDiff(1),
signDiff(1),
addw(1),
average(1),
scale(1)
RESTRICTIONS
All pixel types are accepted, as long as the two input imageshave the same pixel type for each pair of bands. There are twoexceptions: A band in
input2may be real if thecorresponding band in
input1is complex, and a band in
input2may be double if the corresponding band in
input1is double complex. The output band will be of the same typeas the corresponding band in
input1.Resulting values outside the domain of the actual pixel typeof input1are truncated to the nearest legal value.
Only the largest rectangle common to each pair of bandsin the two input images is multiplied.
AUTHOR
Tor Lønnestad, BLAB, Ifi, UiO
REVISED
Svein Bøe
EXAMPLES
multiply i1.img mask.img prod.img
multiply -scale 0.004 mona1.img mona2.img monaBoth.img
ID
$Id: multiply.c,v 1.35 1997/05/27 14:46:30 svein Exp $
Index
- NAME
- SYNTAX
- DESCRIPTION
- OPTIONS
- SEE ALSO
- RESTRICTIONS
- AUTHOR
- REVISED
- EXAMPLES
- ID
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