.\" -*- NROFF -*- .TH if-2 1 .SH NAME if-2 - binary operations between two image (IF) files. .SH SYNOPSIS .B if-2 infile1 infile2 outfile [OPTIONS] .SH DESCRIPTION \fIif-2\fP performs binary functions on two input IF image files. .SH OPTIONS \fIif-2\fP accepts the following options: .TP 16 .B \-\-add Add infile1 and infile2. .TP 16 .B \-\-sub Subtract infile2 from infile1. .TP 16 .B \-\-mul Multiply images. .TP 16 .B \-\-comp Compare images. .TP 16 .B \-\-column-plot \fIn\fP Plot column. .TP 16 .B \-\-row-plot \fIn\fP Plot row. .TP 16 .B \-\-verbose Verbose mode. .TP 16 .B \-\-version Print version. .TP 16 .B \-\-help Print terse help summary .SH AUTHORS Kevin Rosenberg, M.D. .SH HISTORY \fIif-2\fP was first written in 1983 using MS-DOS and an EGA display adapter. In 1999 it was ported to GNU/Linux. .SH SEE ALSO .BR ctrec (1), phm2rs (1), phm2if (1), rs2if (1), ifinfo (1), if-1 (1)