#!/bin/bash # # Developed by Fred Weinhaus 9/1/2017 .......... revised 7/17/2020 # # ------------------------------------------------------------------------------ # # 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: tshirtwarper [-r region] [-c coords] [-f fit] [-g gravity] [-v vshift] # [-o offset] [-R rotate] [-s sharpen] [-d displace] [-a antialias] [-B brightness] # [-S saturation] [-O opacity] [-C compose] [-D directory] infile bgfile [maskfile] # outfile # # or # # USAGE: tshirtwarper [-r region] [-c coords] [-f fit] [-g gravity] [-v vshift] # [-o offset] [-R rotate] [-s sharpen] [-d displace] [-a antialias] [-B brightness] # [-S saturation] [-C compose] [-O opacity] lightingfile displacementfile # infile bgfile [maskfile] outfile # # # USAGE: tshirtwarper [-help|-h] # # OPTIONS: # # -r region region is a simple rectangle defined as the WxH+X+Y # of the region in the tshirt (bgfile) where the overlay # image (bgfile) will be placed. The components of W, H # X and Y are integers and specify the width, height # xoffset and yoffset of the rectangle. Only one or the # other of region or coordinates should be specified. # But coordinates take precedent. # -c coords coords are the 4 x,y corners of the region in the # tshirt (bgfile) where the overlay image (infile) will # be placed; coordinates must be listed clockwise from # top left corner; coordinates are integers>=0. Only # one or the other of region or coordinates should be # specified. But coordinates take precedent. Coordinates # are not restricted to a rectangle and the region # defined by the coordinates can have rotation. # -f fit fit can be: crop (c), distort (d) scale (s) or none (n); # If crop, then the overlay image (infile) will be resized to the # width of the region (or coordinate area) and cropped if needed. # This will not distort the image. The image will not be cropped, # if its height is smaller than that of the region and it # will then be aligned at the top of the region. If distort, # then the overlay image (infile) will be resized to fit exactly # to the region (or coordinate area). This will cause distortion, # if the aspect ratio of the overlay image (infile) does not # match the aspect ratio of the region (or coordinate area). If # scale, then the overlay image (infile) will be resized so that # the larger dimension fits the region (or coordinate area) and # the other dimension is smaller. The resized overlay image # (infile) will be centered in the region. The default=none, # which means that the image will be resized to fit the width of # the region (or coordinate area) and aligned at the top of the # region. If the height of the resized image is larger than the # height of the region, it will extend past the bottom of the # region. # -g gravity gravity for selecting the crop location; choices are: # north (n), south (s) or center (c). The default=center # -v vshift vertical shift of the crop region with respect to the # gravity setting; integer; negative is upward and positive # is downward; default=0 (no shift) # -o offset additional x,y offset of the region or coordinates # in order to make positional adjustments easier; # comma separated x,y pair; positive or negative integer; # default is no offset. # -R rotate additional clockwise positive rotation in order to make # orientational adjustments easier; -360<=float<=360; # default=0 # -s sharpen sharpening to apply to the overlay (infile) image; # float>=0; default=1 # -d displace amount of displacement for the distortion of the # overlay (infile) image; integer>=0; default=10 # -a antialias antialias amount to apply to alpha channel of tshirt # (bgfile) image; float>=0; default=2 # -B brightness brightness percent change to the input overlay image; # positive or negative integer; default=0 # -S saturation saturation percent change to the input overlay image; # positive or negative integer; default=0 # -C compose compose method to merge the input overlay (infile) image with # the background (bgfile); choices are: hardlight, multiply or # over; default=hardlight # -O opacity opacity to apply to the image; 0<=integer<=100; default=100 # (fully opaque) # -D directory directory to read all the exported data from the tshirt script. # This includes the lighting and displacement images and a text file # called tshirtdata.txt containing the same textual parameter data. # # infile is the overlay image to apply to the tshirt. # # bgfile is the tshirt image. # # maskfile is a mask of part or all of the tshirt to limit the region onto which the # overlay image is to be applied. # ### # # NAME: TSHIRTWARPER # # PURPOSE: Transforms an image to place it in a region of a tshirt image. # # DESCRIPTION: TSHIRTWARPER transforms an image to place it in a region of a tshirt # image. The transformed image will display hightlights from the tshirt image # and be distorted to match the wrinkles in the tshirt image. The tshirt script # must be run once first using -E export to get at least the lighting and displacement # images. This can be done with or without -d directory. # # The main purpose of this script and difference from the tshirt or tshirtwarp script # is to allow the overlay image to be moved as desired, but avoid having to recreating # the lighting and displacement images. # # If the -D directory is provided, default arguments will be taken from that directory's # tshirtdata.txt as well as the lighting and displacement images. This directory needs # to have been created previously by running the tshirt script with the -D and -E # arguments. The arguments to the script can be used to override ones from the data # in the directory's tshirtdata.txt file. However, either region or coords must be # supplied, since the tshirtdata.txt file's coordinates will be ignored. Use tshirtwarp # rather than tshirtwarper, if you want to reuse the coordinates and other data in the # tshirtdata.txt file. # # If -D is not supplied, then the script will expect that the lighting and displacement # images will be supplied as input images. The script's default arguments will be the # same ones in the tshirt script's default arguments, but can be replaced by any # arguments provide to this script. However, either region or coords must be supplied. # # # OPTIONS: # # -r region ... REGION is a simple (unrotated) rectangle defined as the # WxH+X+Y of the region in the tshirt (bgfile) where the overlay image (bgfile) # will be placed. The components of W, H, X, Y are integers and specify the # width, height, upperleft xoffset and yoffset of the rectangle. Only one or # the other of region or coordinates should be specified. But coordinates take # precedent. # # -c coords ... COORDS are the 4 x,y corners of the region in the tshirt # (bgfile) where the overlay image (bgfile) will be placed. The coordinates # must be listed clockwise from top left corner; coordinates are integers>=0. # Only one or the other of region or coordinates should be specified. But # coordinates take precedent. Coordinates are not restricted to a rectangle # and the region defined by the coordinates can have rotation. # # -f fit ... fit can be: crop (c), distort (d) scale (s) or none (n); If crop, # then the overlay image (infile) will be resized to the width of the region # (or coordinate area) and cropped if needed. This will not distort the image. # The image will not be cropped, if its height is smaller than that of the region # and it will then be aligned at the top of the region. If distort, then # the overlay image (infile) will be resized to fit exactly to the region (or # coordinate area). This will cause distortion, if the aspect ratio of the overlay # image (infile) does not match the aspect ratio of the region (or coordinate area). # If scale, then the overlay image (infile) will be resized so that the larger # dimension fits the region (or coordinate area) and the other dimension is # smaller. The resized overlay image (infile) will be centered in the region. The # default=none, which means that the image will be resized to fit the width of the # region (or coordinate area) and aligned at the top of the region. If the height # of the resized image is larger than the height of the region, it will extend # past the bottom of the region. # # -g gravity ... GRAVITY for selecting the crop location. The choices are: # north (n), south (s) or center (c). The default=center. # # -v vshift ... VSHIFT is the vertical shift of the crop region with respect # to the gravity setting. Values are integer. Negative is upward and positive # is downward. The default=0 (no shift). # # -o offset ... OFFSET is an additional x,y offset of the region or coordinates # in order to make positional adjustments easier. This is a comma separated # x,y pair. Values are ositive or negative integers for x and y. The default # is no offset. # # -R rotate ... ROTATE is an additional clockwise positive rotation in order # to make orientational adjustments easier. Values are -360<=float<=360. # The default=0. # # -l lighting ... LIGHTING is the contrast increase/decrease for highlights to # apply to the overlay image (infile). Values are -100<=integer<=100. Positive values # increase contrast and negative values decrease contrast. The default=20. # # -s sharpen ... SHARPEN is the sharpening to apply to the overlay (infile) # image. Values are floats>=0. The default=1. # # -d displace ... DISPLACE is the amount of displacement for the distortion # of the overlay (infile) image. Values are integers>=0. The default=10. # # -a antialias ... ANTIALIAS amount to apply to alpha channel of tshirt # (bgfile) image. Values are floats>=0. The default=2. # # -A attenuate ... ATTENUATE is the attenuation of the effect of coarse texture from # the background (bgfile) image from showing on the overlay (input) image. Values are # floats>=0. Larger values blur the tshirt texture more which attenuates the effects. # The default=0. # # -B brightness ... BRIGHTNESS percent change to the input overlay image. Value are # positive or negative integers. The default=0. # # -S saturation ... SATURATION percent change to the input overlay image. Values are # positive or negative integers. The default=0. # # -C compose ... COMPOSE method to merge the overlay (infile) image with the # background (bgfile). Choices are: hardlight (h), multiply (m) or over (o). # The default=hardlight. The choice of hardlight allows the overlay image # to be brighten and darken according to the folds in the tshirt. The other compose # methods will not do that. The choice of over simply places the overlay image # unchanged upon the tshirt image. The choice of multiply does a multiply operation, # which may change colors and would need adjustment by -B and -S arguments. # # -O opacity ... OPACITY to apply to the image. Values are 0<=integers<=100. # The default=100 (fully opaque). # # -D directory ... DIRECTORY to write all the exported data when using the -E export # option, including a text file called tshirtdata.txt that contains the same textual # parameter data sent to terminal. The directory can be specified in the tshirtwarp # script to import all the needed images and textual data. This permits one tshirtwarp # script to be used with all style tshirts, rather than save a customized script for # each style tshirt. If the directory does not exist, it will be created. # # IMPORTANT: The nominal transformed image will not fit the exact height of the # region or coordinates area, if the aspect ratio of the image differs from # that of the region or coordinate area. The process maintains the correct # aspect ratio of the input image. Depending upon the aspect ratio, the # transformed image may be shorter or taller than the height of the region. # To crop the image so that it fits the region or coordinate area, use the # -f option. # # 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. # ###### # # initialize argument for later testing coords="" # coordinates of corners clockwise from top left region="" # WxH+X+Y area on background to place overlay image fit="" # crop or distort the image to fit vertical aspect ratio of region gravity="" # gravity for cropping vshift="" # vertical shift of crop region offset="" # additional x,y offsets of region or coordinates rotate="" # additional rotation for use only with region displace="" # amount of displacement for distortions; integer sharpen="" # sharpening of warped overlay image; float antialias="" # antialias amount to apply to alpha channel of tshirt image; float brightness="" # brightness change to the infile; integer saturation="" # saturation change to the infile; integer compose="" # compose method; hardlight or multiply opacity="" # opacity of image 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 33 ] 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 ;; -r) # get region shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID REGION SPECIFICATION ---" checkMinus "$1" region=`expr "$1" : '\([0-9]*[x][0-9]*[+][0-9]*[+][0-9]*\)'` [ "$region" = "" ] && errMsg "--- REGION=$region MUST BE NON-NEGATIVE INTEGERS OF THE FORM WxH+X+Y ---" ;; -c) # get coords shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID COORDS SPECIFICATION ---" checkMinus "$1" coords=`expr "$1" : '\([ ,0-9]*\)'` [ "$coords" = "" ] && errMsg "--- COORDS=$coords MUST BE 4 SPACE SEPARATED INTEGER X,Y PAIRS ---" ;; -f) # fit shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID FIT SPECIFICATION ---" checkMinus "$1" # test gravity values fit="$1" fit=`echo "$1" | tr '[A-Z]' '[a-z]'` case "$fit" in none|n) fit="none" ;; crop|c) fit="crop" ;; distort|d) fit="distort" ;; *) errMsg "--- FIT=$fit IS AN INVALID VALUE ---" esac ;; -g) # gravity shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID GRAVITY SPECIFICATION ---" checkMinus "$1" # test gravity values gravity="$1" gravity=`echo "$1" | tr '[A-Z]' '[a-z]'` case "$gravity" in center|c) gravity=center ;; north|n) gravity=north ;; south|s) gravity=south ;; *) errMsg "--- GRAVITY=$gravity IS AN INVALID VALUE ---" esac ;; -v) # get vshift shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID VSHIFT SPECIFICATION ---" # checkMinus "$1" vshift=`expr "$1" : '\([-]*[0-9]*\)'` [ "$vshift" = "" ] && errMsg "--- VSHIFT=$vshift MUST BE AN INTEGER ---" ;; -o) # get offset shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID OFFSET SPECIFICATION ---" # checkMinus "$1" offset=`expr "$1" : '\([-]*[0-9]*,[-]*[0-9]*\)'` [ "$offset" = "" ] && errMsg "--- OFFSET=$offset MUST BE ONE INTEGER X,Y PAIR ---" ;; -R) # get rotate shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID ROTATE SPECIFICATION ---" # checkMinus "$1" rotate=`expr "$1" : '\([-]*[.0-9]*\)'` [ "$rotate" = "" ] && errMsg "--- ROTATE=$rotate MUST BE A NON-NEGATIVE FLOAT ---" test1=`echo "$rotate < -360" | bc` test2=`echo "$rotate > 360" | bc` [ $test1 -eq 1 -o $test2 -eq 1 ] && errMsg "--- ROTATE=$rotate MUST BE AN INTEGER BETWEEN -360 AND 360 ---" ;; -s) # get sharpen shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID SHARPEN SPECIFICATION ---" checkMinus "$1" sharpen=`expr "$1" : '\([.0-9]*\)'` [ "$sharpen" = "" ] && errMsg "--- SHARPEN=$sharpen MUST BE A NON-NEGATIVE FLOAT ---" ;; -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 ---" ;; -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 ---" ;; -B) # get brightness shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID BRIGHTNESS SPECIFICATION ---" #checkMinus "$1" brightness=`expr "$1" : '\([-0-9]*\)'` [ "$brightness" = "" ] && errMsg "--- BRIGHTNESS=$brightness MUST BE A NON-NEGATIVE INTEGER ---" testA=`echo "$brightness < -100" | bc` testB=`echo "$brightness > 100" | bc` [ $testA -eq 1 -o $testB -eq 1 ] && errMsg "--- BRIGHTNESS=$brightness MUST BE AN INTEGER BETWEEN -100 AND 100 ---" ;; -S) # get saturation shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID SATURATION SPECIFICATION ---" #checkMinus "$1" saturation=`expr "$1" : '\([-0-9]*\)'` [ "$saturation" = "" ] && errMsg "--- SATURATION=$saturation MUST BE A NON-NEGATIVE INTEGER ---" testA=`echo "$saturation < -100" | bc` testB=`echo "$saturation > 100" | bc` [ $testA -eq 1 -o $testB -eq 1 ] && errMsg "--- SATURATION=$saturation MUST BE AN INTEGER BETWEEN -100 AND 100 ---" ;; -C) # compose shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID COMPOSE SPECIFICATION ---" checkMinus "$1" # test gravity values compose="$1" compose=`echo "$1" | tr '[A-Z]' '[a-z]'` case "$compose" in hardlight|h) compose="hardlight" ;; multiply|m) compose="multiply" ;; over|o) compose="over" ;; *) errMsg "--- COMPOSE=$compose IS AN INVALID VALUE ---" esac ;; -O) # get opacity shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID OPACITY SPECIFICATION ---" checkMinus "$1" opacity=`expr "$1" : '\([0-9]*\)'` [ "$opacity" = "" ] && errMsg "--- OPACITY=$opacity MUST BE A NON-NEGATIVE INTEGER ---" test=`echo "$opacity > 100" | bc` [ $test -eq 1 ] && errMsg "--- OPACITY=$opacity MUST BE AN INTEGER BETWEEN 0 AND 100 ---" ;; -D) # get directory shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID DIRECTORY SPECIFICATION ---" checkMinus "$1" directory="$1" ;; -) # STDIN and end of arguments break ;; -*) # any other - argument errMsg "--- UNKNOWN OPTION ---" ;; *) # end of arguments break ;; esac shift # next option done # # get infile and outfile numargs=$# maskfile="" # test if directory exists and is OK if [ -d "$directory" -a ! -r "$1" ]; then errMsg "--- DIRECTORY IS NOT READABLE ---" fi if [ -d "$directory" -a ! -s "$1" ]; then errMsg "--- DIRECTORY IS EMPTY ---" fi if [ -d "$directory" -a -r "$1" -a -s "$1" ]; then # directory exists, is readable and is not empty if [ $# -eq 3 ]; then infile="$1" bgfile="$2" outfile="$3" elif [ $# -eq 4 ]; then infile="$1" bgfile="$2" maskfile="$3" outfile="$4" else errMsg "--- INCONSISTENT NUMBER OF INPUT AND OUTPUT IMAGES SPECIFIED 1 ---" fi else if [ $# -eq 5 ]; then lightingfile="$1" displacementfile="$2" infile="$3" bgfile="$4" outfile="$5" elif [ $# -eq 6 ]; then lightingfile="$1" displacementfile="$2" infile="$3" bgfile="$4" maskfile="$5" outfile="$6" else errMsg "--- INCONSISTENT NUMBER OF INPUT AND OUTPUT IMAGES SPECIFIED 2 ---" fi fi fi if [ "$directory" = "" ]; then # test that lightingfile and displacementfile provided [ "$lightingfile" = "" ] && errMsg "NO OVERLAY LIGHTING FILE SPECIFIED" [ "$displacementfile" = "" ] && errMsg "NO OVERLAY DISPLACEMENT FILE SPECIFIED" else # verify lightingfile, displacementfile and tshirtdata.txt exist [ ! -d "$directory" ] && errMsg "DIRECTORY $directory COULD NOT BE FOUND" [ ! -f "$directory/lighting.png" -a ! -r "$directory/lighting.png" -a ! -s "$directory/lighting.png" ] && errMsg "LIGHTING FILE $directory/lighting.png COULD NOT BE FOUND" [ ! -f "$directory/displace.png" -a ! -r "$directory/displace.png" -a ! -s "$directory/displace.png" ] && errMsg "DISPLACEMENT FILE $directory/displace.png COULD NOT BE FOUND" [ ! -f "$directory/tshirtdata.txt" -a ! -r "$directory/tshirtdata.txt" -a ! -s "$directory/tshirtdata.txt" ] && errMsg "TSHIRTDATA FILE $directory/tshirtdata.txt COULD NOT BE FOUND" fi # test that infile provided [ "$infile" = "" ] && errMsg "NO OVERLAY FILE SPECIFIED" # test that bgfile provided [ "$bgfile" = "" ] && errMsg "NO BACKGROUND (TSHIRT) FILE SPECIFIED" # test that outfile provided [ "$outfile" = "" ] && errMsg "NO OUTPUT FILE SPECIFIED" dir="$tmpdir/TSHIRTWARPER.$$" 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 $dir; exit 1" ERR if [ "$directory" = "" ]; then [ "$fit" = "" ] && fit="none" [ "$gravity" = "" ] && gravity="center" [ "$vshift" = "" ] && vshift=0 [ "$rotate" = "" ] && rotate=0 [ "$displace" = "" ] && displace=10 [ "$sharpen" = "" ] && sharpen=1 [ "$antialias" = "" ] && antialias=2 [ "$brightness" = "" ] && brightness=0 [ "$saturation" = "" ] && saturation=0 [ "$compose" = "" ] && compose="hardlight" [ "$opacity" = "" ] && opacity="100" else # store arguments from input into _in variable coords_in=$coords region_in=$region fit_in=$fit gravity_in=$gravity vshift_in=$vshift offset_in=$offset rotate_in=$rotate displace_in=$displace sharpen_in=$sharpen antialias_in=$antialias brightness_in=$brightness saturaion_in=$saturation compose_in=$compose opacity_in=$opacity # read the arguments from the textfile in the directory source $directory/tshirtdata.txt coordinates="" # override directory arguments with input arguments or defaults if [ "$fit_in" != "" ]; then fit=$fit_in else fit="none" fi if [ "$gravity_in" != "" ]; then gravity=$gravity_in else gravity="center" fi if [ "$vshift_in" != "" ]; then vshift=$vshift_in else vshift=0 fi if [ "$rotate_in" != "" ]; then rotate=$rotate_in else rotate="0" fi [ "$displace_in" != "" ] && displace=$displace_in [ "$sharpen_in" != "" ] && sharpen=$sharpen_in [ "$antialias_in" != "" ] && antialias=$antialias_in [ "$compose_in" != "" ] && compose=$compose_in [ "$opacity_in" != "" ] && opacity=$opacity_in if [ "$brightness" != "" -o "$saturation" != "" ]; then modulating="" if [ "$brightness_in" != "" ]; then brightness=$brightness_in else brightness="0" fi if [ "$saturation_in" != "" ]; then saturation=$saturation_in else saturation="0" fi fi fi # set up brighness, saturation, hue and contrast if [ "$modulating" != "" ]; then bri=$((100+$brightness)) sat=$((100+$saturation)) hue=`convert xc: -format "%[fx:(200/360)*$hue+100]" info:` if [ "$brightness" = "0" -a "$saturation" = "0" ]; then modulating="" else modulating="-modulate $bri,$sat,100" fi fi # read overlay image if ! convert -quiet "$infile" +repage $modulating $dir/tmpI.mpc; then errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi # read tshirt image and make color (so that result is not grayscale when overlay image is grayscale) if ! convert -quiet "$bgfile" +repage -colorspace sRGB $dir/tmpT.mpc; then errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi if [ "$maskfile" != "" ]; then # read maskfile image if ! convert -quiet "$maskfile" +repage $dir/tmpM.mpc; then echo "--- FILE $maskfile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi fi # read lightingfile and displacementfile if [ "$directory" = "" ]; then if ! convert -quiet "$lightingfile" +repage $dir/tmpL.mpc; then errMsg "--- FILE $lightingfile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi if ! convert -quiet "$displacementfile" +repage $dir/tmpD.mpc; then errMsg "--- FILE $displacementfile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi else if ! convert -quiet "$directory/lighting.png" +repage $dir/tmpL.mpc; then errMsg "--- FILE $directory/lighting.png DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi if ! convert -quiet "$directory/displace.png" +repage $dir/tmpD.mpc; then errMsg "--- FILE $directory/displace.png DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi fi # extract coordinates of subsection of tshirt and bounding box if [ "$coords" = "" -a "$region" = "" ]; then errMsg "--- EITHER COORDINATES OR REGION IS REQUIRED ---" elif [ "$coords" != "" ]; then clist=`echo $coords | sed 's/[, ][, ]*/ /g';` test=`echo $clist | wc -w | tr -d " "` if [ $test -eq 8 ]; then x1=`echo $clist | cut -d\ -f1` y1=`echo $clist | cut -d\ -f2` x2=`echo $clist | cut -d\ -f3` y2=`echo $clist | cut -d\ -f4` x3=`echo $clist | cut -d\ -f5` y3=`echo $clist | cut -d\ -f6` x4=`echo $clist | cut -d\ -f7` y4=`echo $clist | cut -d\ -f8` if [ "$offset" != "" ]; then xx=`echo "$offset" | cut -d, -f1` yy=`echo "$offset" | cut -d, -f2` x1=$((x1+xx)) y1=$((y1+yy)) x2=$((x2+xx)) y2=$((y2+yy)) x3=$((x3+xx)) y3=$((y3+yy)) x4=$((x4+xx)) y4=$((y4+yy)) fi #echo "$x1,$y1; $x2,$y2; $x3,$y3; $x4,$y4;" # get bounding box minx=`convert xc: -format "%[fx:min(min(min($x1,$x2),$x3),$x4)]" info:` miny=`convert xc: -format "%[fx:min(min(min($y1,$y2),$y3),$y4)]" info:` maxx=`convert xc: -format "%[fx:max(max(max($x1,$x2),$x3),$x4)]" info:` maxy=`convert xc: -format "%[fx:max(max(max($y1,$y2),$y3),$y4)]" info:` wd=`convert xc: -format "%[fx:$maxx-$minx+1]" info:` ht=`convert xc: -format "%[fx:$maxy-$miny+1]" info:` #echo "minx=$minx; miny=$miny; maxx=$maxx; maxy=$maxy; wd=$wd, ht=$ht;" # compute offsets, topwidth and correction rotation angle xoffset=$x1 yoffset=$y1 topwidth=`convert xc: -format "%[fx:hypot(($x2-$x1),($y2-$y1))+1]" info:` angle=`convert xc: -format "%[fx:-atan2(($y2-$y1),($x2-$x1))]" info:` #echo "xoffset=$xoffset; yoffset=$yoffset; topwidth=$topwidth; angle=$angle;" else errMsg "--- INCONSISTENT NUMBER OF COORDINATES ---" fi elif [ "$region" != "" ]; then region=`echo "$region" | tr -d " " | tr -cs "0-9\n" " "` wd=`echo "$region" | cut -d\ -f1` ht=`echo "$region" | cut -d\ -f2` minx=`echo "$region" | cut -d\ -f3` miny=`echo "$region" | cut -d\ -f4` #echo "minx=$minx; miny=$miny; wd=$wd, ht=$ht;" if [ "$offset" != "" ]; then xx=`echo "$offset" | cut -d, -f1` yy=`echo "$offset" | cut -d, -f2` minx=$((minx+xx)) miny=$((miny+yy)) fi xoffset=$minx yoffset=$miny topwidth=$wd angle=0 #echo "xoffset=$xoffset; yoffset=$yoffset; topwidth=$topwidth; angle=$angle;" x1=$minx y1=$miny x2=$((minx+$wd-1)) y2=$miny x3=$((minx+$wd-1)) y3=$((miny+$ht-1)) x4=$minx y4=$((miny+$ht-1)) #echo "$x1,$y1; $x2,$y2; $x3,$y3; $x4,$y4;" #echo "xoffset=$xoffset; yoffset=$yoffset; topwidth=$topwidth; angle=$angle;" fi # get width of overlay image and compute xscale ww=`convert -ping $dir/tmpI.mpc -format "%w" info:` hh=`convert -ping $dir/tmpI.mpc -format "%h" info:` scale=`convert xc: -format "%[fx:($ww-1)/($topwidth-1)]" info:` #echo "scale=$scale;" # compute corresponding coordinates in overlay image if [ "$coords" != "" ]; then # subtract offset and unrotate xo1=`convert xc: -format "%[fx:round(($x1-$xoffset)*cos($angle)+($y1-$yoffset)*sin($angle))]" info:` yo1=`convert xc: -format "%[fx:round(($x1-$xoffset)*sin($angle)+($y1-$yoffset)*cos($angle))]" info:` xo2=`convert xc: -format "%[fx:round(($x2-$xoffset)*cos($angle)+($y2-$yoffset)*sin($angle))]" info:` yo2=`convert xc: -format "%[fx:round(($x2-$xoffset)*sin($angle)+($y2-$yoffset)*cos($angle))]" info:` xo3=`convert xc: -format "%[fx:round(($x3-$xoffset)*cos($angle)+($y3-$yoffset)*sin($angle))]" info:` yo3=`convert xc: -format "%[fx:round(($x3-$xoffset)*sin($angle)+($y3-$yoffset)*cos($angle))]" info:` xo4=`convert xc: -format "%[fx:round(($x4-$xoffset)*cos($angle)+($y4-$yoffset)*sin($angle))]" info:` yo4=`convert xc: -format "%[fx:round(($x4-$xoffset)*sin($angle)+($y4-$yoffset)*cos($angle))]" info:` # compute max height ho=`convert xc: -format "%[fx:max($yo4-$yo1,$yo3-$yo2)+1]" info:` #echo "ho=$ho;" xo1=0 yo1=0 xo2=$((ww-1)) yo2=0 xo3=$((ww-1)) if [ "$fit" = "distort" ]; then yo3=$((hh-1)) else yo3=`convert xc: -format "%[fx:(round($scale*($ho-1)))]" info:` fi xo4=0 yo4=$yo3 elif [ "$region" != "" ]; then # use input width and scaled height of region for overlay coordinates xo1=0 yo1=0 xo2=$((ww-1)) yo2=0 xo3=$((ww-1)) if [ "$fit" = "distort" ]; then yo3=$((hh-1)) else yo3=`convert xc: -format "%[fx:(round($scale*($ht-1)))]" info:` fi xo4=0 yo4=$yo3 fi #echo "$xo1,$yo1; $xo2,$yo2; $xo3,$yo3; $xo4,$yo4;" # apply rotation about center of scaled down image translated to correct upper left corner if [ "$rotate" != "0" ]; then rotate=`convert xc: -format "%[fx:(pi/180)*$rotate]" info:` xcent=`convert xc: -format "%[fx:round(0.5*$topwidth)+$x1]" info:` ycent=`convert xc: -format "%[fx:round(0.5*($hh/$scale)+$y1)]" info:` # echo "rotate=$rotate; xcent=$xcent; ycent=$ycent" x1=`convert xc: -format "%[fx:round($xcent+($x1-$xcent)*cos($rotate)-($y1-$ycent)*sin($rotate))]" info:` y1=`convert xc: -format "%[fx:round($ycent+($x1-$xcent)*sin($rotate)+($y1-$ycent)*cos($rotate))]" info:` x2=`convert xc: -format "%[fx:round($xcent+($x2-$xcent)*cos($rotate)-($y2-$ycent)*sin($rotate))]" info:` y2=`convert xc: -format "%[fx:round($ycent+($x2-$xcent)*sin($rotate)+($y2-$ycent)*cos($rotate))]" info:` x3=`convert xc: -format "%[fx:round($xcent+($x3-$xcent)*cos($rotate)-($y3-$ycent)*sin($rotate))]" info:` y3=`convert xc: -format "%[fx:round($ycent+($x3-$xcent)*sin($rotate)+($y3-$ycent)*cos($rotate))]" info:` x4=`convert xc: -format "%[fx:round($xcent+($x4-$xcent)*cos($rotate)-($y4-$ycent)*sin($rotate))]" info:` y4=`convert xc: -format "%[fx:round($ycent+($x4-$xcent)*sin($rotate)+($y4-$ycent)*cos($rotate))]" info:` # echo "$x1,$y1; $x2,$y2; $x3,$y3; $x4,$y4;" fi im_version=`convert -list configure | \ sed '/^LIB_VERSION_NUMBER */!d; s//,/; s/,/,0/g; s/,0*\([0-9][0-9]\)/\1/g' | head -n 1` if [ "$im_version" -ge "07000000" ]; then identifying="magick identify" else identifying="identify" fi # test if tshirt/bgfile has alpha. If so remove and save for later. is_alpha=`$identifying -verbose $dir/tmpT.mpc | grep "Alpha" | head -n 1` [ "$is_alpha" != "" ] && convert $dir/tmpT.mpc -alpha extract -blur 0x$antialias -level 50x100% $dir/tmpA.mpc # set up sharpening of overlay image in perspective if [ "$sharpen" != "0" ]; then sproc="-unsharp 0x$sharpen -clamp" else sproc="" fi #echo "sproc=$sproc" #echo "fit=$fit; gravity=$gravity;" # set up cropping cropping="" if [ "$fit" = "crop" ]; then hc=$((yo3+1)) test=`convert xc: -format "%[fx:($hh>$hc)?1:0]" info:` if [ $test -eq 1 ]; then cropping="-gravity $gravity -crop ${ww}x${hc}+0+0 +repage" fi fi #echo "hh=$hh; hc=$hc; cropping=$cropping" # set up for opacity if [ "$opacity" != "100" ]; then opacity=`convert xc: -format "%[fx:$opacity/100]" info:` oproc="-alpha on -channel a -evaluate multiply $opacity +channel" else oproc="" fi if [ "$maskfile" != "" ]; then mask="$dir/tmpM.mpc" else mask="" fi # line2 1-4: process overlay image to perspective transform with transparent # background the size of the tshirt image and sharpen # lines 5-7: apply lighting image and make tshirt background from lighting image # transparent using alpha of previous steps # lines 8-10: apply displacement image # note: need to add -colorspace sRGB to tmpTG to keep tmpI as color after layers merge 7/17/2020 some time after 7.0.8.23 convert -respect-parenthesis \( $dir/tmpT.mpc -alpha transparent -colorspace sRGB \) \ \( $dir/tmpI.mpc $cropping -virtual-pixel none +distort perspective \ "$xo1,$yo1 $x1,$y1 $xo2,$yo2 $x2,$y2 $xo3,$yo3 $x3,$y3 $xo4,$yo4 $x4,$y4" $sproc \) \ -background none -layers merge +repage \ \ \( -clone 0 -alpha extract \) \ \( -clone 0 $oproc \( $dir/tmpL.mpc \) $swapping -compose $compose -composite \) \ -delete 0 +swap -compose over -alpha off -compose copy_opacity -composite \ \ $dir/tmpD.mpc \ -define compose:args=-$displace,-$displace -compose displace -composite \ $dir/tmpITD.mpc # composite distorted overlay onto tshirt if [ "$is_alpha" != "" ]; then convert $dir/tmpT.mpc $dir/tmpITD.mpc $mask -compose over -composite \ $dir/tmpA.mpc -alpha off -compose copy_opacity -composite "$outfile" else convert $dir/tmpT.mpc $dir/tmpITD.mpc $mask -compose over -composite "$outfile" fi exit 0