Content-type: text/html Manpage of avmaths

avmaths

Section: User Commands (1)
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NAME

avmaths - Operate on cube with averaged plane from cube  

PERSON RESPONSIBLE

nebk  

CATEGORIES

analysis  

DESCRIPTION

AVMATHS averages designated planes from a cube, and then performs some mathematical operation on the cube with the averaged plane. Subtraction, optical depth, replacement, and multiplication operations have been coded. Undefined output pixels are blanked.  

PARAMETERS

in
The input image. Wild card expansion is supported. No default.
out
The output image. No default.
region
Specify the channels to average with a REGION=IMAGE command such as
  region=image(1,5),image(120,128)
This would average channels 1:5 and 120:128 from the cube. No other region commands are accepted for example spatial sub-regions will be ignored.
options
Task enrichment options. Minimum match is active.

"subtract" OUT(i,j,k) = IN(i,j,k) - AV(i,j) "odepth" OUT(i,j,k) = ln(AV(i,j) / IN(i,j,k)) "replace" OUT(i,j) = AV(i,j) "multiply" OUT(i,j,k) = IN(i,j,k) * AV(i,j)

"noreduce" causes the output image to be of the same dimensions

    as the input image when REPLACEMENT is invoked.  By default,
    the REPLACED output image is reduced to two dimensions as
    there is probably no point to replicating one plane N times.
    In this case, the output third axis descriptors reflect the
    size of the bounding box of the selected region on the third
    axis

Pixels are blanked if the input pixel is blanked, the averaged channel pixel is blanked, or the output is undefined.

maths.for,v 1.2 2010/09/10 14:50:12 pteuben Exp $


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS

This document was created by man2html, using the manual pages.
Time: 18:35:38 GMT, July 05, 2011