<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 98.1p1 release (March 2nd, 1998) originally by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>Image Arithmetic</TITLE> <META NAME="description" CONTENT="Image Arithmetic"> <META NAME="keywords" CONTENT="vol1"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <LINK REL="STYLESHEET" HREF="vol1.css"> <LINK REL="next" HREF="node184.html"> <LINK REL="previous" HREF="node182.html"> <LINK REL="up" HREF="node174.html"> <LINK REL="next" HREF="node184.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html2898" HREF="node184.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html2894" HREF="node174.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html2888" HREF="node182.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html2896" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <A NAME="tex2html2897" HREF="node216.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="icons.gif/index_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html2899" HREF="node184.html">Filtering</A> <B> Up:</B> <A NAME="tex2html2895" HREF="node174.html">Commands Grouped by Subject</A> <B> Previous:</B> <A NAME="tex2html2889" HREF="node182.html">Coordinate Transformation of Images</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION001569000000000000000"> Image Arithmetic</A> </H2> <PRE><TT> AVERAGE/AVERAGE Compute simple average of all pixels in a subimage <BR> AVERAGE/COLUMN Compute average of image columns <BR> AVERAGE/IMAGE Calculate the average of images <BR> AVERAGE/ROW Compute average of image rows <BR> AVERAGE/WINDOW Compare images, then take the meaning <BR> COMPUTE/COLUMN Perform arithmetic expression on image column <BR> COMPUTE/IMAGE Compute arithmetic expression of images <BR> COMPUTE/PIXEL Perform arithmetic operations on images using <BR> pixel coordinates <BR> COMPUTE/ROW Compute arithmetic expression on image scan lines <BR> COMPUTE/..PLANE Do arithmatic on planes of a data cube </TT></PRE> <P> <BR><HR> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-09</I> </ADDRESS> </BODY> </HTML>
