Initial import

1 files changed, 76 insertions, 0 deletions

diff --git a/image2ascii b/image2ascii
new file mode 100755
index 0000000..729cb4d
--- /dev/null
+++ b/image2ascii
@@ -0,0 +1,76 @@
+#! /bin/sh
+#
+# $ Id: image2ascii,v 1.6 2002/12/01 12:36:56 roland Exp roland $
+#
+# Convert any image to an ASCII-graphic using ImageMagick
+#
+##########################################################################
+#
+#   Copyright (C) 1997-2002  Roland Rosenfeld <roland@spinnaker.de>
+#
+#   This program is free software; you can redistribute it and/or
+#   modify it under the terms of the GNU General Public License as
+#   published by the Free Software Foundation; either version 2 of
+#   the License, or (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+#   General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+##########################################################################
+
+CONVERT=convert		# The ImageMagick convert binary
+PBMTOASCII=pbmtoascii	# The NetPBM pbmtoascii binary
+
+umask 077
+
+tmpdir=${TMPDIR-/tmp}/image2ascii.$$
+mkdir $tmpdir || exit 1
+trap "rm -rf $tmpdir; exit" 0 1 2 3 15
+
+TMPFILE=$tmpdir/image
+
+usage="Usage: $0 [option] [imagefile]
+
+   -help                display this help text
+   -geometry 132x50     define the size of the ascii image"
+
+
+# set default geometry to display width:
+geometry=`stty size </dev/tty | awk '{print $2 "x" $1}'`
+
+# test if stty did not output a useful value:
+case "$geometry" in
+        0x0 ) geometry=80x24 ;;
+        ""  ) geometry=80x24 ;;
+esac
+
+case $# in 
+        0 ) cat > $TMPFILE ;;
+        1 ) case "$1" in
+                    -* ) echo "$usage"; exit 0 ;;
+                    * )  cat "$1" > $TMPFILE ;;
+            esac ;;
+        2 ) case "$1" in
+                    -geometry ) geometry=$2
+                                cat > $TMPFILE ;;
+                    * )         echo "$usage"; exit 0 ;;
+            esac ;;
+        3 ) case "$1" in
+                    -geometry ) geometry=$2
+                                cat $3 > $TMPFILE ;;
+                    * )         echo "$usage"; exit 0 ;;
+            esac ;;
+        * ) echo "$usage"; exit 0 ;;
+esac
+
+# multiply x with 2 and y with 4 (pbmtoascii divides by 2x4)
+geometry=`echo $geometry | awk -Fx '{print 2*$1 "x" 4*$2}'`
+
+$CONVERT -geometry $geometry $TMPFILE $TMPFILE.pbm
+$PBMTOASCII -2x4 < $TMPFILE.pbm