<!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>Numerical Values of Image Pixels</TITLE> <META NAME="description" CONTENT="Numerical Values of Image Pixels"> <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="node188.html"> <LINK REL="previous" HREF="node186.html"> <LINK REL="up" HREF="node174.html"> <LINK REL="next" HREF="node188.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html2946" HREF="node188.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html2942" HREF="node174.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html2936" HREF="node186.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html2944" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <A NAME="tex2html2945" 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="tex2html2947" HREF="node188.html">Spectral Analysis</A> <B> Up:</B> <A NAME="tex2html2943" HREF="node174.html">Commands Grouped by Subject</A> <B> Previous:</B> <A NAME="tex2html2937" HREF="node186.html">Transformations on Pixel Values</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION0015613000000000000000"> Numerical Values of Image Pixels</A> </H2> <PRE><TT> FIND/MINMAX Display (ands tore) max and min value <BR> FIND/PIXEL Find first pixel with a value inside or outside <BR> the interval <BR> FIT/FLAT_SKY Fit background image <BR> INTEGRATE/APERTURE Integrate flux inside aperture <BR> INTEGRATE/LINE Integrate pixel-values over area in image <BR> MAGNITUDE/CIRCLE Compute the magnitude of the specified object <BR> by integrating over the central area defined <BR> by a circular aperture <BR> MAGNITUDE/RECTANGLE Compute the magnitude of the specified object <BR> by integrating over the central area defined <BR> by a rectangular aperture <BR> MODIFY/CURSOR Change pixel values in image by cursor <BR> MODIFY/GCURSOR Change pixel values in image by graphic cursor <BR> MODIFY/PIXEL Change pixel values in image <BR> PLOT/HISTOGRAM Plot histogram of pixel values in image <BR> PRINT/IMAGE Print an image <BR> READ/IMAGE List pixel values into image <BR> STATISTICS/IMAGE Calculate statistics of an image <BR> WRITE/IMAGE Change pixel values in image (world coordinates) </TT></PRE> <P> <BR><HR> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-09</I> </ADDRESS> </BODY> </HTML>
