#!/bin/bash # # Developed by Fred Weinhaus 12/8/2012 .......... revised 4/25/2015 # # ------------------------------------------------------------------------------ # # 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: mosaictiles [-t tsize] [-w width ] [-b bright] [-c color] [-A] # [-r ripples] [-g granular] [-n newseed] infile outfile # # USAGE: mosaictiles [-h or -help] # # OPTIONS: # # -t tsize size of tiles; integer>0; default=30 # -w width width of grout; integer>0; default=3 # -b bright brightness of grout; 0<=integer<=100; default=0 # -c color grout color; any valid opaque IM color is allowed # -A antialias grout edges # -r ripples extent of ripples of grout; integer>=0; default=15 # -g granular granularity of noise image used to make rippled # grout; integer>=0; default=5 # -n newseed seed value of noise image; integer>=0; default is # random seed # ### # # NAME: MOSAICTILES # # PURPOSE: To apply a mosaic tiles effect to image. # # DESCRIPTION: MOSAICTILES applies a mosaic tiles effect to image. The user may # control the tile size, grout thickness, grout brightness and grout ripples. # This script is similar to the Photoshop Mosiac Tiles filter. # # OPTIONS: # # -t tsize ... TSIZE is the size of the tiles in the x and y direction. Values # are integers greater than 0. The default=30. # # -w width ... WIDTh of the grout. Values are integers greater than 0. The # default=3. # # -b bright ... BRIGHT is the brightness of the grout. Values are between 0 and # 100. The default=0. # # -c color ... COLOR is the grout color. Any valid opaque IM color is allowed. # The default=black # # -A ... ANTIALIAS grout. # # -r ripples ... RIPPLES are the extent of the ripples (wiggles) in the grout. # Values are integers greater than or equal to 0. The default=15. # # -g granular ... GRANULAR is the granularity of the noise image used to make # the rippled grout. Smaller values gives small curls, while larger values are # broader curves. Values are integers greater than or equal to 0. The # default=5. # # -n newseed ... NEWSEED is the seed value for the random noise image. Values # are integers greater than or equal to 0. The default is random seed values. # # 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 tsize=15 # tile size width=3 # grout width bright=0 # grout brightness color="black" # grout color antialias="off" # grout line antialias ripple=15 # ripple amount for the grout newseed="100" # seed value granular=5 # granularity of displacement of grout lines rough=1 # coarseness value # 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 17 ] 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 tsize shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID TSIZE SPECIFICATION ---" checkMinus "$1" tsize=`expr "$1" : '\([0-9]*\)'` [ "$tsize" = "" ] && errMsg "--- TSIZE=$tsize MUST BE A NON-NEGATIVE INTEGER VALUE (with no sign) ---" test=`echo "$tsize < 1" | bc` [ $test -eq 1 ] && errMsg "--- TSIZE=$tsize MUST BE A POSITIVE INTEGER ---" ;; -w) # get width shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID WIDTH SPECIFICATION ---" checkMinus "$1" width=`expr "$1" : '\([0-9]*\)'` [ "$width" = "" ] && errMsg "--- WIDTH=$width MUST BE A NON-NEGATIVE INTEGER VALUE (with no sign) ---" test=`echo "$width < 1" | bc` [ $test -eq 1 ] && errMsg "--- WIDTH=$width MUST BE A POSITIVE INTEGER ---" ;; -b) # get bright shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID BRIGHT SPECIFICATION ---" checkMinus "$1" bright=`expr "$1" : '\([0-9]*\)'` [ "$bright" = "" ] && errMsg "BRIGHT=$bright MUST BE A NON-NEGATIVE INTEGER" testA=`echo "$bright < 0" | bc` testB=`echo "$bright > 100" | bc` [ $testA -eq 1 -o $testB -eq 1 ] && errMsg "--- BRIGHT=$bright MUST BE AN INTEGER BETWEEN 0 AND 100 ---" ;; -c) # get color shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID BRIGHT SPECIFICATION ---" checkMinus "$1" color="$1" ;; -A) # set antialias antialias="on" ;; -r) # get ripples shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID RIPPLES SPECIFICATION ---" checkMinus "$1" ripples=`expr "$1" : '\([0-9]*\)'` [ "$ripples" = "" ] && errMsg "--- RIPPLES=$ripples MUST BE A NON-NEGATIVE INTEGER VALUE (with no sign) ---" ;; -g) # get granular shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID GRANULAR SPECIFICATION ---" checkMinus "$1" granular=`expr "$1" : '\([0-9]*\)'` [ "$granular" = "" ] && errMsg "--- GRANULAR=$granular MUST BE A NON-NEGATIVE INTEGER VALUE (with no sign) ---" ;; -n) # get newseed shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID NEWSEED SPECIFICATION ---" checkMinus "$1" newseed=`expr "$1" : '\([0-9]*\)'` [ "$newseed" = "" ] && errMsg "--- NEWSEED=$newseed MUST BE A NON-NEGATIVE INTEGER VALUE (with no sign) ---" ;; -) # 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/mosaictiles_1_$$.mpc" tmpB1="$dir/mosaictiles_1_$$.cache" tmpA2="$dir/mosaictiles_2_$$.mpc" tmpB2="$dir/mosaictiles_2_$$.cache" tmpA3="$dir/mosaictiles_3_$$.mpc" tmpB3="$dir/mosaictiles_3_$$.cache" trap "rm -f $tmpA1 $tmpB1 $tmpA2 $tmpB2 $tmpA3 $tmpB3;" 0 trap "rm -f $tmpA1 $tmpB1 $tmpA2 $tmpB2 $tmpA3 $tmpB3; exit 1" 1 2 3 15 trap "rm -f $tmpA1 $tmpB1 $tmpA2 $tmpB2 $tmpA3 $tmpB3; exit 1" ERR # get im version 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` # colorspace RGB and sRGB swapped between 6.7.5.5 and 6.7.6.7 # though probably not resolved until the latter # then -colorspace gray changed to linear between 6.7.6.7 and 6.7.8.2 # then -separate converted to linear gray channels between 6.7.6.7 and 6.7.8.2, # though probably not resolved until the latter # so -colorspace HSL/HSB -separate and -colorspace gray became linear # but we need to use -set colorspace RGB before using them at appropriate times # so that results stay as in original script # The following was determined from various version tests using mosaictiles. # with IM 6.7.4.10, 6.7.6.10, 6.8.0.8 if [ "$im_version" -lt "06070607" -o "$im_version" -gt "06070707" ]; then setcspace="-set colorspace RGB" else setcspace="" fi # no need for setcspace for grayscale or channels after 6.8.5.4 if [ "$im_version" -gt "06080504" ]; then setcspace="" fi # read the input image into the temporary cached image and test if valid convert -quiet "$infile" +repage "$tmpA1" || errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO size ---" # get image size ww=`convert $tmpA1 -format "%w" info:` hh=`convert $tmpA1 -format "%h" info:` #echo "ww=$ww; hh=$hh" # expand size of grid to allow for dispersion ww2=$((ww+tsize)) hh2=$((hh+tsize)) # compute tile size including grout width tsize=$((tsize+width)) # set seeding if [ "$newseed" != "" ]; then seeding="-seed $newseed" else seeding="" fi # disable threshold if coarse=0 if [ "$antialias" = "on" ]; then thresholding="" else thresholding="-threshold $rough%" fi # create single grid cell # tile # chop off black at right and bottom of image # append last row and column to fill out image convert \( -size ${tsize}x${tsize} xc:black \ -size ${width}x${tsize} xc:white +append \ -size ${tsize}x${width} xc:white -append \) \ -write mpr:tile +delete -size ${ww2}x${hh2} tile:mpr:tile $tmpA2 # add ripples to the grid # first create blurred noise image convert -size ${ww2}x${hh2} xc: $seeding +noise random $setcspace -colorspace gray \ -blur 0x${granular} -contrast-stretch 0 $tmpA3 # use disperse to add ripples if [ "$im_version" -lt "06050304" ]; then composite $tmpA3 $tmpA2 -virtual-pixel black -displace ${ripple}x${ripple} miff:- |\ -gravity center -crop ${ww}x${hh}+0+0 +repage $thresholding $tmpA2 else convert $tmpA2 $tmpA3 $setcspace -virtual-pixel black \ -define compose:args=${ripple}x${ripple} -compose displace -composite \ -gravity center -crop ${ww}x${hh}+0+0 +repage $thresholding $tmpA2 fi # apply to image # pre-color ( also need to add -negate after thresholding above) #convert $tmpA1 \( $tmpA2 -fill white -colorize $bright \) \ # -compose multiply -composite "$outfile" convert $tmpA1 \ \( -clone 0 -fill $color -colorize 100 \) \ \( $tmpA2 -fill black -colorize $bright \) \ -compose multiply -composite "$outfile" exit 0