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<head><title>if2</title></head>
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<A NAME="if2"></A><CENTER>
<A HREF="ctsim_contents.html">Contents</A> <A HREF="ctsim92.html#ctsimtext">Up</A> <A HREF="ctsim95.html#if1"><<</A> <A HREF="ctsim97.html#ifexport">>></A> </CENTER><HR>
<H2>if2</H2>
Performs math functions on a two images. The command works with both
real and complex-valued images.<P>
<B>Usage</B><P>
<TT>if2 input-filename1 input-filename2 output-filename [options...]</TT><P>
<B>Options</B><P>
<TABLE>
<TR><TD VALIGN=TOP>
- -<TT>add</TT>
</FONT></TD>
<TD VALIGN=TOP>
Add the two images.
</FONT></TD></TR>
<TR><TD VALIGN=TOP>
- -<TT>sub</TT>
</FONT></TD>
<TD VALIGN=TOP>
Subtract the two images.
</FONT></TD></TR>
<TR><TD VALIGN=TOP>
- -<TT>multiply</TT>
</FONT></TD>
<TD VALIGN=TOP>
Multiply the two images.
</FONT></TD></TR>
<TR><TD VALIGN=TOP>
- -<TT>divide</TT>
</FONT></TD>
<TD VALIGN=TOP>
Divide the two images.
</FONT></TD></TR>
<TR><TD VALIGN=TOP>
- -<TT>comp</TT>
</FONT></TD>
<TD VALIGN=TOP>
Statistically compare the two images. The standard
<A HREF="ctsim32.html#conceptimagecompare">three distance measurements</A> are reported.
</FONT></TD></TR>
<TR><TD VALIGN=TOP>
- -<TT>column-plot n</TT>
</FONT></TD>
<TD VALIGN=TOP>
Plot the values of a particular column. The plot file is saved to disk.
</FONT></TD></TR>
<TR><TD VALIGN=TOP>
- -<TT>row-plot n</TT>
</FONT></TD>
<TD VALIGN=TOP>
Plot the values of a particular row. The plot file is saved to disk.
</FONT></TD></TR>
</TABLE>
<P>
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