#!/bin/bash # # Developed by Fred Weinhaus 1/4/2018 .......... revised 9/3/2020 # # ------------------------------------------------------------------------------ # # Licensing: # # Copyright © Fred Weinhaus # # My scripts are available free of charge for non-commercial use, ONLY. # # For use of my scripts in commercial (for-profit) environments or # non-free applications, please contact me (Fred Weinhaus) for # licensing arrangements. My email address is fmw at alink dot net. # # If you: 1) redistribute, 2) incorporate any of these scripts into other # free applications or 3) reprogram them in another scripting language, # then you must contact me for permission, especially if the result might # be used in a commercial or for-profit environment. # # My scripts are also subject, in a subordinate manner, to the ImageMagick # license, which can be found at: http://www.imagemagick.org/script/license.php # # ------------------------------------------------------------------------------ # #### # # USAGE: outfit [-e extract] [-f fuzzval] [-b bgcolor] [-p position] [-a antialias] # [-n] [-c reduce] [-m modulate] [-x xroll] [-y yroll] [-o orientation] [-l lightval] # [-c contrast] [-d displace] [-s smooth] [-E] [-D directory] # infile bgfile [maskfile] outfile # # USAGE: outfit [-help|-h] # # OPTIONS: # # -e extract method of providing a mask of object vs background; choices # are: floodfill, refill or alpha; default=floodfill; the mask # will become black at the background color and white elsewhere # -f fuzzval fuzz value for the extract method of floodfill or refill; # float>=0; default=5 # -b bgcolor background color to use for extracting the mask when using # extract=refill; any valid IM opaque color is allowed; # default=white # -p position positional coordinates to extract the background color when # creating the mask using extract=floodfill; values are one # integer x,y pair or a compass direction for one corner, side # or middle of the image; default="0,0" (northwest corner of # the image) # -a antialias mask boundary antialias blur amount; float>=0; default=1 # -n negate (invert) the mask image # -r reduce reduction amount as percent for the infile (pattern image) # before tiling it; integer>=0; default=10 # -m modulate modulation (lightness, saturation, hue) for the infile # (pattern image) before tiling it; comma separate triplet # L,S,H; integers>=0; default="100,100,100" (no change) # -x xroll roll amount in pixels for the tiled image in the horizontal # dimension; integer; default=0 # -y xroll roll amount in pixels for the tiled image in the vertical # dimension; integer; default=0 # -o orientation orientation angle for rotation of the tiled image; # -360<=integer<=360; default=0 # -l lightval average brightness in percent for the lighting image; # integer>=0; default=40 # -c contrast shading contrast adjustment for the lighting image; integer>=0; # default=5 # -d displace displacement amount when applying the displacement image; # integer>=0; default=5 # -s smooth smoothing distance to apply to the perimeter between object # and background of displacement image in order to reduce edge # artifacts from too dark a region near the object perimenter # -E export the lighting image, displacement map and other # needed parameters to be able to use a condensed outfitwarper # script to repeat the processing on the same size and style # outfit image for faster subsequent processing. # -D directory directory to write all the exported data, including a text file # called outfit.txt containing the same textual parameter data # sent to terminal. The directory can be specified in the # outfitwarp script to import all the needed images and textual # data. # # infile is the pattern image to be applied to the background outfit (clothing) image # ### # # NAME: OUTFIT # # PURPOSE: Transforms a pattern image to place it over an image of some piece of # clothing or outfit. # # DESCRIPTION: OUTFIT transforms a pattern image to place it over an image of some # piece of clothing or outfit. The transformed image will display hightlights from the # outfit image and be distorted to match the wrinkles in the outfit image. The process # requires a mask image, which can be provided externally or created internally using # either a floodfill or refill process. The floodfill or refill process change the # background area to black and the rest to white. Floodfill requires a seed coordinate, # and fuzz value and replaces color locally. Refill requires a background color and # fuzz value and replaces color globally. The mask image or alpha channel must be a # binary image (black/white) with at most the edges antialiased. This script will not # bend textures to conform to curved or bent arms. Special processing such as at # http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=23348 will be # needed, or alternately, use separate masks for each part that requires a different # pattern orientation. # # # OPTIONS: # # -e extract ... EXTRACT is the method of extracting or providing a mask of object vs # background. The choices are: floodfill (f), refill (r) or alpha (a). Floodfill # generates the mask locally with a seed coordinate, background color and fuzz value. # Refill generates a mask globally with a background color and fuzz value. Alpha gets # the mask from the alpha channel of the background image. The default=floodfill. The # mask will become black at the background color and white elsewhere. If maskfile is # provide, it overrides this option. # # -f fuzzval ... FUZZVAL is the fuzz value for the extract method of floodfill or refill. # Values are floats>=0. The default=5. # # -b bgcolor ... BGCOLOR is the background color to use for extracting the mask when # using extract=refill. Any valid IM opaque color is allowed. The default=white. Note, # extracting the mask when the background is very dark and the object (outfit) is very # dark will not work well. Good separation of color is needed between the background # and the object (outfit/clothing) # # -p position ... POSITION is the positional coordinated to use to extract the mask when # using extract=floodfill. Values are either one integer x,y pair or a compass direction # for a corner, side or middle of the background image. The default="0,0" (northwest # corner of the background image). # # -a antialias ... ANTIALIAS is the mask boundary antialias (blur sigma) amount. Values # are floats>=0. The default=1. # # -n ... NEGATE (invert) the mask image. # # -r reduce ... REDUCE is the reduction amount as percent for the infile (pattern image) # before tiling it. Values are integers>=0. The default=10. # # -m modulate ... MODULATE is the modulation (lightness, saturation, hue) applied to the # infile (pattern image) before tiling it. Values are a comma separate triplet L,S,H of # integers>=0. The default="100,100,100" (no change). # # -x xroll ... XROLL is the roll amount in pixels for the tiled image in the horizontal # dimension. Values are integers. The default=0. # # -x yroll ... YROLL is the roll amount in pixels for the tiled image in the vertical # dimension. Values are integers. The default=0. # # -o orientation ... ORIENTATION angle in degrees for rotation of the tiled pattern # image. Values are -360<=integer<=360; default=0. # # -l lightval ... LIGHTVAL is the average brightness in percent for the lighting image. # Values are integers>=0. The default=40. # # -c contrast ... CONTRAST is the shading contrast adjustment for the lighting image. # Values are integers>=0. The default=5. # # -d displace ... DISPLACE is the displacement amount when applying the displacement # image to distort the pattern on the background image. Values are integers>=0. The # default=5. # # -s smooth ... SMOOTH is the smoothing distance to apply to the perimeter between object # and background of the displacement image in order to reduce edge artifacts from too # dark a region near the object perimenter. # # -E ... EXPORT the lighting image, the displacement image and other needed # parameters to be able to use a condensed outfitwarp script to repeat the processing # on the same size and style outfit image for faster subsequent processing. # # -D directory ... DIRECTORY to write all the exported data, including a text file # called outfitdata.txt containing the same textual parameter data as sent to terminal. # The directory can be specified later in the outfitwarp script to import all the # needed images and textual data. # # NOTE: The mask image or alpha channel must be a binary image (black/white) with at # most the edges antialiased. # # NOTE: This script will not bend textures to conform to curved or bent arms. Special # processing such as at # http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=23348 will be needed, # or alternately, use separate masks for each part that requires a different # pattern orientation. # # REQUIREMENTS: IM 6.5.3.4 due to the use of -compose displace. # # CAVEAT: No guarantee that this script will work on all platforms, # nor that trapping of inconsistent parameters is complete and # foolproof. Use At Your Own Risk. # ###### # # set up defaults extract="floodfill" # extract mask: alpha, floodfill, refill; default=floodfill fuzzval=5 # fuzz value for floodfill or refill in percent; default=5 bgcolor="white" # background color to use to create mask; default=white position="" # x,y position to start floodfill antialias=1 # antialias mask; default=1 negate="no" # negate (invert) mask reduce=10 # reduce pattern image before tiling; percent; default=0 modulate="100,100,100" # modulate pattern image before tiling; HSL values (0 to 200); default="100,100,100" (no change) xroll=0 # horizontal (x-direction) roll of the tiled pattern yroll=0 # horizontal (y-direction) roll of the tiled pattern orientation=0 # orientation angle for rotation of tiled pattern lightval=40 # desired lighting image average graylevel in percent; default=40 contrast=5 # contrast adjustment for shading the lighting image; default=0 displace=5 # displacement amount; default=5 smooth=0 # smooth boundary of object/background in displace map; default=0 export="no" # export lighting image, displacement map and other arguments directory="" # directory to write the lighting image, displacement map and text file # set directory for temporary files tmpdir="/tmp" # set up functions to report Usage and Usage with Description PROGNAME=`type $0 | awk '{print $3}'` # search for executable on path PROGDIR=`dirname $PROGNAME` # extract directory of program PROGNAME=`basename $PROGNAME` # base name of program usage1() { echo >&2 "" echo >&2 "$PROGNAME:" "$@" sed >&2 -e '1,/^####/d; /^###/g; /^#/!q; s/^#//; s/^ //; 4,$p' "$PROGDIR/$PROGNAME" } usage2() { echo >&2 "" echo >&2 "$PROGNAME:" "$@" sed >&2 -e '1,/^####/d; /^######/g; /^#/!q; s/^#*//; s/^ //; 4,$p' "$PROGDIR/$PROGNAME" } # function to report error messages errMsg() { echo "" echo $1 echo "" usage1 exit 1 } # function to test for minus at start of value of second part of option 1 or 2 checkMinus() { test=`echo "$1" | grep -c '^-.*$'` # returns 1 if match; 0 otherwise [ $test -eq 1 ] && errMsg "$errorMsg" } # test for correct number of arguments and get values if [ $# -eq 0 ] then # help information echo "" usage2 exit 0 elif [ $# -gt 35 ] then errMsg "--- TOO MANY ARGUMENTS WERE PROVIDED ---" else while [ $# -gt 0 ] do # get parameter values case "$1" in -help|-h) # help information echo "" usage2 exit 0 ;; -e) # extract shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID EXTRACT SPECIFICATION ---" checkMinus "$1" # test gravity values extract="$1" extract=`echo "$1" | tr '[A-Z]' '[a-z]'` case "$extract" in floodfill|f) extract="floodfill" ;; refill|r) extract="refill" ;; alpha|a) extract="alpha" ;; *) errMsg "--- EXTRACT=$extract IS AN INVALID VALUE ---" esac ;; -f) # get fuzzval shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID FUZZVAL SPECIFICATION ---" checkMinus "$1" fuzzval=`expr "$1" : '\([.0-9]*\)'` [ "$fuzzval" = "" ] && errMsg "--- FUZZVAL=$fuzzval MUST BE A NON-NEGATIVE FLOAT ---" ;; -b) # get bgcolor shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID BGCOLOR SPECIFICATION ---" checkMinus "$1" bgcolor="$1" ;; -p) # get position shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID POSITION SPECIFICATION ---" checkMinus "$1" position="$1" ;; -a) # get antialias shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID ANTIALIAS SPECIFICATION ---" checkMinus "$1" antialias=`expr "$1" : '\([.0-9]*\)'` [ "$antialias" = "" ] && errMsg "--- ANTIALIAS=$antialias MUST BE A NON-NEGATIVE FLOAT ---" ;; -n) # get negate negate="yes" ;; -r) # get reduce shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID REDUCE SPECIFICATION ---" checkMinus "$1" reduce=`expr "$1" : '\([0-9]*\)'` [ "$reduce" = "" ] && errMsg "--- REDUCE=$reduce MUST BE A NON-NEGATIVE INTEGER ---" ;; -m) # get modulate shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID MODULATE SPECIFICATION ---" checkMinus "$1" modulate=`expr "$1" : '\([0-9]*,[0-9]*,[0-9]*\)'` [ "$modulate" = "" ] && errMsg "--- MODULATE=$modulate MUST BE A COMMA SEPARATED INTEGER TRIPLET---" ;; -x) # get xroll shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID XROLL SPECIFICATION ---" # checkMinus "$1" xroll=`expr "$1" : '\([-]*[0-9]*\)'` [ "$xroll" = "" ] && errMsg "--- XROLL=$xroll MUST BE AN INTEGER ---" ;; -y) # get yroll shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID YROLL SPECIFICATION ---" # checkMinus "$1" yroll=`expr "$1" : '\([-]*[0-9]*\)'` [ "$yroll" = "" ] && errMsg "--- YROLL=$yroll MUST BE AN INTEGER ---" ;; -o) # get orientation shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID ORIENTATION SPECIFICATION ---" # checkMinus "$1" orientation=`expr "$1" : '\([-]*[0-9]*\)'` [ "$orientation" = "" ] && errMsg "--- ORIENTATION=$orientation MUST BE A NON-NEGATIVE INTEGER ---" test1=`echo "$orientation < -360" | bc` test2=`echo "$orientation > 360" | bc` [ $test1 -eq 1 -o $test2 -eq 1 ] && errMsg "--- ORIENTATION=$orientation MUST BE AN INTEGER BETWEEN -360 AND 360 ---" ;; -l) # get lightval shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID LIGHTVAL SPECIFICATION ---" checkMinus "$1" lightval=`expr "$1" : '\([0-9]*\)'` [ "$lightval" = "" ] && errMsg "--- LIGHTVAL=$lightval MUST BE A NON-NEGATIVE INTEGER ---" test=`echo "$lightval > 100" | bc` [ $test -eq 1 ] && errMsg "--- LIGHTVAL=$lightval MUST BE AN INTEGER BETWEEN 0 AND 100 ---" ;; -c) # get contrast shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID CONTRAST SPECIFICATION ---" checkMinus "$1" contrast=`expr "$1" : '\([0-9]*\)'` [ "$contrast" = "" ] && errMsg "--- CONTRAST=$contrast MUST BE A NON-NEGATIVE INTEGER ---" ;; -d) # get displace shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID DISPLACE SPECIFICATION ---" checkMinus "$1" displace=`expr "$1" : '\([0-9]*\)'` [ "$displace" = "" ] && errMsg "--- DISPLACE=$displace MUST BE A NON-NEGATIVE INTEGER ---" ;; -s) # get smooth shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID SMOOTH SPECIFICATION ---" checkMinus "$1" smooth=`expr "$1" : '\([0-9]*\)'` [ "$smooth" = "" ] && errMsg "--- SMOOTH=$smooth MUST BE A NON-NEGATIVE INTEGER ---" ;; -E) # get export export="yes" ;; -D) # set directory shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID DIRECTORY SPECIFICATION ---" checkMinus "$1" directory="$1" ;; -) # STDIN and end of arguments break ;; -*) # any other - argument errMsg "--- UNKNOWN OPTION ---" ;; *) # end of arguments break ;; esac shift # next option done # # get infile, bgfile, maskfile outfile if [ $# -eq 4 ]; then infile="$1" bgfile="$2" maskfile="$3" outfile="$4" elif [ $# -eq 3 ]; then infile="$1" bgfile="$2" outfile="$3" else errMsg "--- INCONSISTENT NUMBER OF INPUT AND OUTPUT IMAGES SPECIFIED ---" fi fi # test that infile provided [ "$infile" = "" ] && errMsg "NO INFILE (PATTERN) FILE SPECIFIED" # test that bgfile provided [ "$bgfile" = "" ] && errMsg "NO BACKGROUND (OUTFIT) FILE SPECIFIED" # test that outfile provided [ "$outfile" = "" ] && errMsg "NO OUTPUT FILE SPECIFIED" # set directory for temporary files # tmpdir="/tmp" tmpdir="." dir="$tmpdir/OUTFIT.$$" mkdir "$dir" || { echo >&2 "UNABLE TO CREATE WORKING DIR \"$dir\" -- ABORTING" exit 10 } trap "rm -rf $dir;" 0 trap "rm -rf $dir; exit 1" 1 2 3 10 15 trap "rm -rf $dir; exit 1" ERR # setup for flattening if [ "$extract" != "alpha" ]; then flattening="-flatten" else flattening="" fi # set up for antialiasing mask if [ "$antialias" != "0" ]; then antialiasing="-blur 0x$antialias -level 50x100%" else antialiasing="" fi # set up for sigmoidal contrast for lighting if [ "$contrast" != "0" ]; then contrasting="-sigmoidal-contrast ${contrast}x50%" else contrasting="" fi # set up for modulating the pattern image if [ "$modulate" = "100,100,100" ]; then modulating="" else modulating="-modulate $modulate" fi # read pattern infile image convert -quiet "$infile" $modulating $dir/tmpP.mpc || echo "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" # read background outfit file convert -quiet "$bgfile" $flattening -colorspace gray $dir/tmpB.mpc || echo "--- FILE $bgfile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" # get coordinates and bgcolor if [ "$maskfile" = "" ]; then if [ "$extract" = "floodfill" -a "$position" != "" ]; then # direction specified wd=`convert -ping $dir/tmpB.mpc -format "%w" info:` ht=`convert -ping $dir/tmpB.mpc -format "%h" info:` widthm1=$((wd-1)) heightm1=$((ht-1)) midwidth=`echo "scale=0; $wd / 2" | bc` midheight=`echo "scale=0; $ht / 2" | bc` position=`echo "$position" | tr "[:upper:]" "[:lower:]"` case "$position" in northwest) position="0,0" ;; north) position="$midwidth,0" ;; northeast) position="$widthm1,0" ;; southeast) position="$widthm1,$heightm1" ;; south) position="$midwidth,$heightm1" ;; southwest) position="0,$heightm1" ;; west) position="0,$midheight" ;; [0-9]*,[0-9]*) position=$position ;; *) errMsg "--- INVALID position ---" ;; esac bgcolor=`convert "$dir/tmpB.mpc" -format "%[pixel:u.p{$position}]" info:` else # default coordinates position="0,0" fi fi #echo "bgcolor=$bgcolor; position=$position;" # set up for mask inversion if [ "$negate" = "yes" ]; then inversion="-negate" else inversion="" fi # setup for rolling tiled pattern image if [ "$xroll" != "0" -o "$yroll" != "0" ]; then rolling="-roll +${xroll}+${yroll}" else rolling="" fi # extract mask if [ "$maskfile" != "" ]; then convert -quiet "$maskfile" $antialiasing $dir/tmpM.mpc || echo "--- FILE $maskfile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" elif [ "$extract" = "alpha" ]; then convert $dir/tmpB.mpc -alpha extract $inversion $antialiasing $dir/tmpM.mpc elif [ "$extract" = "floodfill" ]; then convert $dir/tmpB.mpc $flattening -bordercolor "$bgcolor" -border 1 \ -fuzz $fuzzval% -fill black -draw "color $position floodfill" -alpha off \ -fill white +opaque black $inversion $antialiasing -shave 1x1 $dir/tmpM.mpc elif [ "$extract" = "refill" ]; then convert $dir/tmpB.mpc $flattening \ -fuzz $fuzzval% -fill black -opaque "$bgcolor" \ -fill white +opaque black $inversion $antialiasing $dir/tmpM.mpc fi # tile infile (pattern image) ww=`convert -ping $dir/tmpB.mpc -format "%w" info:` hh=`convert -ping $dir/tmpB.mpc -format "%h" info:` dim=`convert xc: -format "%[fx:1.5*max($ww,$hh)]" info:` if [ "$orientation" = "0" ]; then convert -size ${ww}x${hh} xc: \( $dir/tmpP.mpc -resize $reduce% +write mpr:tile +delete \) \ -tile mpr:tile -draw "color 0,0 reset" -alpha off $rolling $dir/tmpTP.mpc else convert -size ${dim}x${dim} xc: \( $dir/tmpP.mpc -resize $reduce% +write mpr:tile +delete \) \ -tile mpr:tile -draw "color 0,0 reset" -alpha off $rolling \ -rotate $orientation -gravity center -crop ${ww}x${hh}+0+0 +repage $dir/tmpTP.mpc fi # compute average graylevel of bgfile (outfit file) color=`convert \( $dir/tmpB.mpc $flattening +write $dir/tmpBF.mpc \) \ $dir/tmpM.mpc -alpha off -compose copy_opacity -composite \ -scale 1x1! -alpha off -type grayscale -depth 8 -format "%[pixel:u.p{0,0}]" info: | \ tr -cs "0-9*\n" " " | sed 's/[ ]*//g'` diff_light=`convert xc: -format "%[fx:($lightval-100*($color/255))]" info:` diff_displace=`convert xc: -format "%[fx:(50-100*($color/255))]" info:` #echo "color=$color; diff_light=$diff_light; diff_displace=$diff_displace;" # create lighting image convert $dir/tmpBF.mpc -evaluate add $diff_light% $contrasting $dir/tmpL.mpc # create displace image if [ "$smooth" != "0" ]; then convert \( $dir/tmpBF.mpc -evaluate add $diff_displace% \) \ $dir/tmpM.mpc -alpha off -compose copy_opacity -composite \ -background "gray(50%)" -alpha background -alpha off \ \( +clone -fill "gray(50%)" -colorize 100 \) \( $dir/tmpM.mpc -morphology edgein octagon:$smooth -level 0x50% \) \ -compose over -composite $dir/tmpD.mpc else convert \( $dir/tmpBF.mpc -evaluate add $diff_displace% $contrasting \) \ $dir/tmpM.mpc -alpha off -compose copy_opacity -composite \ -background "gray(50%)" -alpha background -alpha off $dir/tmpD.mpc fi # check if export directory exists. if [ "$export" = "yes" -a "$directory" != "" ]; then # remove trailing \ if [ ! -d "$directory" ]; then mkdir "$directory" || { echo >&2 "UNABLE TO CREATE DIRECTORY \"$directory\" -- ABORTING" exit 10 } fi # remove trailing \ directory=`echo "$directory" | sed 's/[/]*$//'` convert $dir/tmpM.mpc $directory/mask.png convert $dir/tmpL.mpc $directory/lighting.png convert $dir/tmpD.mpc -alpha set $directory/displace.png elif [ "$export" = "yes" -a "$directory" = "" ]; then convert $dir/tmpM.mpc mask.png convert $dir/tmpL.mpc lighting.png convert $dir/tmpD.mpc -alpha set displace.png fi # process for lighting and displacement convert $dir/tmpTP.mpc $dir/tmpL.mpc -compose hardlight -composite -compose over \ $dir/tmpD.mpc -define compose:args=${displace}x${displace} -compose displace -composite -compose over \ $dir/tmpM.mpc -alpha off -compose copy_opacity -composite \ "$outfile" if [ "$export" = "yes" -a "$directory" = "" ]; then # show arguments to terminal echo "displace=\"$displace\"" echo "reduce=\"$reduce\"" echo "xroll=\"$xroll\"" echo "yroll=\"$yroll\"" echo "orientation=\"$orientation\"" echo "modulate=\"$modulate\"" elif [ "$export" = "yes" -a "$directory" != "" ]; then # save arguments to textfile echo "displace=\"$displace\"" >> $directory/outfitdata.txt echo "reduce=\"$reduce\"" >> $directory/outfitdata.txt echo "xroll=\"$xroll\"" >> $directory/outfitdata.txt echo "yroll=\"$yroll\"" >> $directory/outfitdata.txt echo "orientation=\"$orientation\"" >> $directory/outfitdata.txt echo "modulate=\"$modulate\"" >> $directory/outfitdata.txt fi exit 0