#!/bin/bash # # Developed by Fred Weinhaus 6/5/2017 .......... revised 6/5/2017 # # ------------------------------------------------------------------------------ # # 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: shapecluster [-t thickness] [-d darkness] [-r rolloff] [-e extent] [-b border] # [-c color] [infile] [outfile] # # USAGE: shapecluster [h|-help] # # OPTIONS: # # -t thickness thickness of the region separation; integer>0; default=10 # -d darkeness darkeness of the shadows; 0<=integer<=100; default=60 # -r rolloff rolloff of the shadow darkness; integer>=0; default=2 # -e extent extent (distance) of the shadow; integer>=0; default=5 # -b border border applied to output image; integer>=0; default=20 # -c color border color; default=white # ### # # NAME: SHAPECLUSTER # # PURPOSE: To create a division of the image into 5 separated rectangular regions. # # DESCRIPTION: SHAPECLUSTER creates a division of the image into 5 separated # rectangular regions. Each region is separated with a shadowed background. # # # ARGUMENTS: # # -t thickness ... THICKNESS of the region separation. Values are integers>0. # The default=10. # # -d darkeness ... DARKNESS of the shadows. Values are 0<=integer<=100. The default=60. # # -r rolloff ... ROLLOFF (fading) of the shadow darkness. Values are integers>=0. # The default=3. # # -e extent ... EXTENT (distance) of the shadow. Values are integers>=0. The default=5. # # -b border ... BORDER in pixels to add around the outside of the output image. # Value are integer>=0. The default=5. # # -c color ... border and background color. Any valid opaque IM color is allowed. # The default=white. # # # Reference: # http://www.photoshopessentials.com/photo-effects/shape-cluster-photo-display-with-photoshop-cc/ # # 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 default values thickness=10 # thickness of lines darkeness=60 # shadow darkness rolloff=2 # shadow rolloff extent=5 # shadow extent border=20 # border amount color="white" # border and background color # set directory for temporary files dir="." # suggestions are dir="." or dir="/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 14 ] then errMsg "--- TOO MANY ARGUMENTS WERE PROVIDED ---" else while [ $# -gt 0 ] do # get parameter values case "$1" in -h|-help) # help information echo "" usage2 exit 0 ;; -t) # get thickness shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID THICKNESS SPECIFICATION ---" checkMinus "$1" thickness=`expr "$1" : '\([0-9]*\)'` [ "$thickness" = "" ] && errMsg "--- THICKNESS=$thickness MUST BE A NON-NEGATIVE INTEGER ---" testA=`echo "$thickness == 0" | bc` [ $testA -eq 1 ] && errMsg "--- THICKNESS=$thickness MUST BE A POSITIVE INTEGER ---" ;; -c) # get color shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID COLOR SPECIFICATION ---" checkMinus "$1" color="$1" ;; -d) # get darkness shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID DARKNESS SPECIFICATION ---" checkMinus "$1" darkness=`expr "$1" : '\([0-9]*\)'` [ "$darkness" = "" ] && errMsg "--- DARKNESS=$darkness MUST BE A NON-NEGATIVE INTEGER ---" testA=`echo "$darkness > 100" | bc` [ $testA -eq 1 ] && errMsg "--- DARKNESS=$darkness MUST BE AN INTEGER BETWEEN 0 AND 100 ---" ;; -r) # get rolloff shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID ROLLOFF SPECIFICATION ---" checkMinus "$1" rolloff=`expr "$1" : '\([0-9]*\)'` [ "$rolloff" = "" ] && errMsg "--- ROLLOFF=$rolloff MUST BE A NON-NEGATIVE INTEGER ---" ;; -e) # get extent shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID EXTENT SPECIFICATION ---" checkMinus "$1" extent=`expr "$1" : '\([0-9]*\)'` [ "$extent" = "" ] && errMsg "--- EXTENT=$extent MUST BE A NON-NEGATIVE INTEGER ---" ;; -b) # get border shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID BORDER SPECIFICATION ---" checkMinus "$1" border=`expr "$1" : '\([0-9]*\)'` [ "$border" = "" ] && errMsg "--- BORDER=$border MUST BE A NON-NEGATIVE INTEGER ---" ;; -) # 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 infile="$1" outfile="$2" fi # test that infile provided [ "$infile" = "" ] && errMsg "NO INPUT FILE SPECIFIED" # test that outfile provided [ "$outfile" = "" ] && errMsg "NO OUTPUT FILE SPECIFIED" # setup temporary images tmpA1="$dir/shapecluster_1_$$.mpc" tmpB1="$dir/shapecluster_1_$$.cache" trap "rm -f $tmpA1 $tmpB1; exit 0" 0 trap "rm -f $tmpA1 $tmpB1; exit 1" 1 2 3 15 # read the input image into the temporary cached image and test if valid convert -quiet -regard-warnings "$infile" -alpha off +repage $tmpA1 || echo "--- 1 FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO size ---" # get image dimensions ww=`convert -ping $tmpA1 -format "%w" info:` hh=`convert -ping $tmpA1 -format "%h" info:` # determine 1/3 and 2/3 dimensions w13=`convert xc: -format "%[fx:round($ww/3)]" info:` h13=`convert xc: -format "%[fx:round($hh/3)]" info:` w23=$((ww-w13)) h23=$((hh-h13)) # process image # lines 1-7 -- read input and create white mask image with lines drawn in black # line 8 -- put mask into alpha channel of input # line 9 -- create shadow image # line 10 -- apply shadow to image # line 11 -- flatten against background/bordercolor # line 12 -- pad image with bordercolor border # line 13 -- write output convert \( $tmpA1 \( -size ${ww}x${hh} xc:white \ -fill white -stroke black -strokewidth $thickness -draw \ "line $w13,0 $w13,$h23 \ line $w13,$h13 $ww,$h13 \ line 0,$h23 $w23,$h23 \ line $w23,$h13 $w23,$hh" \ -alpha off +repage \) \ -alpha off -compose copy_opacity -composite -compose over \) \ \( +clone -background black -shadow ${darkeness}x${rolloff}+${extent}+${extent} \) \ +swap -background none -layers merge +repage \ -background $color -compose over -flatten \ -bordercolor $color -border $border \ "$outfile" exit 0