-#!/bin/sh -e
+#!/bin/dash
-function die() {
- echo -e "$*" >&2
- exit 1
+# anondcim
+# forked from http://code.sotun.de/git/anondcim/
+#
+# copyright 2012-2014 Jan Huwald, Felix Kästner (fpunktk)
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+err() {
+ echo "$*" >&2
}
-function r() {
- echo $(($RANDOM % $1))
+die() {
+ err "$*"
+ exit 1
}
-max=$#
-cur=1
+rand() {
+ # random number between 0 and $1 - 1
+ # read from urandom, sh interpretes numbers with leading 0 wrong, so prepend $1 which doesn't change the result
+ echo $(( $1$(tr -dc "0-9" < /dev/urandom | head -c $((${#1} + 2))) % $1 ))
+}
-[ $max -gt 0 ] || die "Usage:\n[IMG_PREFIX=your_prefix] $0 img1.jpg img2.jpg ..."
-[ -x "$(which convert)" ] || die "ImageMagick is not installed"
-[ -x "$(which jhead)" ] || die "jhead is not installed"
+type convert >/dev/null 2>&1 || die "ImageMagick (convert, identify) is not installed"
+type jhead 1>/dev/null 2>&1 || type exiftool 1>/dev/null 2>&1 || die "jhead or exiftool has to be installed"
-while [ $# -gt 0 ]; do
- dst="$IMG_PREFIX$(seq -w $cur $max|head -n1).jpg"
- echo -e "[$((100*cur/max))%]\t$1\t-> $dst"
+# set default values
+file_prefix=""
+dst_size="1920"
+dst_dir="--same--"
+jpg_quality="75"
- [ -f "$1" ] || die "$1 does not exist"
- (! [ -e "$dst" ]) || die "$dst already exists"
+[ $# -gt 0 ] || die "Usage: $0 [-p image_file_prefix] [-s destination_size (absolute or percentage, default: $dst_size)] [-d destination_directory] [-q destination_jpg_quality (default: $jpg_quality)] imagefile(s)"
- read W H <<EOF
- $(identify $1 |cut -f3 -d\ |tr x \ )
-EOF
+while getopts ':p:s:d:q:' OPTION
+do
+ case $OPTION in
+ "p")
+ file_prefix="${OPTARG}_"
+ ;;
+ "s")
+ dst_size="$OPTARG"
+ ;;
+ "d")
+ dst_dir="${OPTARG%/}/" # enforce a trailing "/"
+ [ -d "$dst_dir" ] || die "destination directory \"$dst_dir\" does not exist"
+ ;;
+ "q")
+ jpg_quality="$OPTARG"
+ ;;
+ *)
+ err "not recognised: OPTION=$OPTION, OPTARG=$OPTARG"
+ ;;
+ esac
+done
+shift $(($OPTIND - 1))
- [ $W -ge 100 ] && [ $H -ge 100 ] || die "image is too small"
-
- if [ $W -ge 1000 ]; then DW=$((W / 100)); else DW=10; fi
- if [ $H -ge 1000 ]; then DH=$((H / 100)); else DH=10; fi
-
- W=$(($W-1))
- H=$(($H-1))
-
- convert $1 \
- -colorspace RGB \
- -distort Perspective "$(
- ( echo $(r $DW) $(r $DH) 0 0
- echo $(($W - $(r $DW))) $(r $DH) $W 0
- echo $(r $DW) $(($H - $(r $DH))) 0 $H
- echo $(($W - $(r $DW))) $(($H - $(r $DH))) $W $H
- ) | tr " \n" ", ")" \
- -filter gaussian -define filter:support=5 -define filter:sigma=0.5 \
- -attenuate 2 +noise Uniform \
- -resize 50% \
- -colorspace sRGB \
- "$dst"
-
- jhead -purejpg -q "$dst" || die "removing meta-data failed"
+cur=1
+total=$#
+addend=1
+for fn in "$@"
+do
+ [ -f "$fn" ] || { err "source \"$fn\" does not exist and is skipped"; continue; }
+ #
+ if [ "$dst_dir" = "--same--" ]
+ then
+ # use the directory of the source file
+ dst="$(dirname "$fn")/"
+ else
+ dst="$dst_dir"
+ fi
+ #
+ # always use a padded number as destination filename suffix
+ dst_jpg="$dst$file_prefix$(echo -n "0000000000$cur" | tail -c ${#total}).jpg"
+ while [ -e "$dst_jpg" ] && [ $addend -lt 1000 ]
+ do
+ dst_jpg="$dst$file_prefix$(echo -n "0000000000$(($cur + $addend))" | tail -c ${#total}).jpg"
+ addend=$((addend + 1))
+ done
+ [ -e "$dst_jpg" ] && { err "destination \"$dst_jpg\" for source \"$fn\" already exists, anonymization is skipped"; continue; }
+ #
+ echo "anonymizing \"$fn\" to \"$dst_jpg\" ($cur/$total)"
+ #
+ read w h << EOF
+$(identify -format '%w %h' "$fn")
+EOF
+ #
+ # resize and distort
+ if [ $w -ge 100 ] && [ $h -ge 100 ]
+ then
+ if [ $w -ge 1000 ]; then dw=$(($w / 100)); else dw=10; fi
+ if [ $h -ge 1000 ]; then dh=$(($h / 100)); else dh=10; fi
+ #
+ w=$(($w - 1))
+ h=$(($h - 1))
+ #
+ convert "$fn" \
+ -colorspace RGB \
+ -distort Perspective "$(rand $dw) $(rand $dh) 0 0, $(($w - $(rand $dw))) $(rand $dh) $w 0, $(rand $dw) $(($h - $(rand $dh))) 0 $h, $(($w - $(rand $dw))) $(($h - $(rand $dh))) $w $h" \
+ -filter gaussian -define filter:support=5 -define filter:sigma=0.5 \
+ -attenuate 2 +noise Uniform \
+ -resize "$dst_size" \
+ -colorspace sRGB \
+ -quality "$jpg_quality" \
+ "$dst_jpg"
+ else
+ err "image is too small to be distorted and will just be filtered and resized"
+ convert "$fn" \
+ -colorspace RGB \
+ -filter gaussian -define filter:support=5 -define filter:sigma=0.5 \
+ -attenuate 2 +noise Uniform \
+ -resize "$dst_size" \
+ -colorspace sRGB \
+ -quality "$jpg_quality" \
+ "$dst_jpg"
+ fi
+ #
+ # remove metadata
+ if [ -x "$(which jhead)" ]
+ then
+ jhead -purejpg -q "$dst_jpg" || err "removing meta-data with jhead failed"
+ fi
+ if [ -x "$(which exiftool)" ]
+ then
+ exiftool -quiet -overwrite_original -all= "$dst_jpg" || err "removing meta-data with exiftool failed"
+ fi
+ #
cur=$(($cur + 1))
- shift
done
+
projects / anondcim.git / blobdiff