#!/bin/bash # # Developed by Fred Weinhaus 4/20/2017 .......... revised 4/20/2017 # # ------------------------------------------------------------------------------ # # 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: painteffect [-g gammaval] [-b blur] [-p paintval] [-e edgegain] # [-t texturize] [-r reseed] [-s soften] [-m mix] infile outfile # USAGE: painteffect [-h or -help] # # OPTIONS: # # -g gammaval preprocessing gamma adjustment to the midtone # brightness; float>=0; default=1 (no change) # -b blur selective blur (sigma) amount to lessen detail; # float>=0; default=2 # -p paintval oil paint effect amount; integer>=0; default=0 # -e edgegain edge effect gain; float>=0; default=8 # -t texturize apply random textures to the image; yes or no; # default=yes # -r reseed random texture seeds for two types of texture; # comma separate integer>0 pair; default is random seeds # -s soften texture softening; float>0; default=2 # -m mix mix/blend two types of texture; 0<=integer<=100; # default=80 # ### # # NAME: PAINTEFFECT # # PURPOSE: To apply a paint type effect to an image. # # DESCRIPTION: PAINTEFFECT applies a paint type effect to an image. An oil # paint like effect is optional. A texturizing effect is optional. An edge # effect is optional. # # OPTIONS: # # -g gammaval ... GAMMAVAL is a preprocessing gamma adjustment to the midtone # brightness. Best results occur when the image is not overly white. Values # are floats>=0. The default=1 (no change). # # -b blur ... BLUR is the selective blur (sigma) amount to lessen detail. # Larger values smooth out image detail. Values are floats>=0. The default=2. # # -p paintval ... PAINTVAL controls the amount of a paint effect. Value are # integers>=0. The default=0. # # -e edgegain ... EDGEGAIN is edge effect gain amount. Values are float>=0. # The default=8. # # -t texturize ... TEXTURIZE is a flag to apply random textures to the image. # Choices are: yes (y) or no (n). The default=yes. # # -r reseed ... RESEED is a pair of random texture seeds for two types of # texture. Values are comma separate non-negative integer pairs. The default # is completely random seed values. # # -s soften ... SOFTEN controls the texture softening/smoothing. Values are # floats>=0. The default=2. # # -m mix ... MIX is the percent mix/blend of the two types of texture. Values # are 0<=integers<=100. The default=80. # # 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 gammaval=1 # gamma adjustment of the midtone brightness; float>=0 blur=2 # selective blur amount to lessen detail; float>=0 paintval=0 # paint amount; integer>==0 edgegain=8 # edge gain; float>=0 texturize="yes" # apply random texture; yes or no reseed="100,200" # random texture seeds for two types of texture; integers; default=random seeds soften=3 # texture softening; float>=0 mix=80 # percent mix/blend two types of texture # 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 18 ] 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 ;; -g) # get gammaval shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID GAMMAVAL SPECIFICATION ---" checkMinus "$1" gammaval=`expr "$1" : '\([.0-9]*\)'` [ "$gammaval" = "" ] && errMsg "GAMMAVAL=$gammaval MUST BE A NON-NEGATIVE FLOAT" ;; -b) # get blur shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID BLUR SPECIFICATION ---" checkMinus "$1" blur=`expr "$1" : '\([.0-9]*\)'` [ "$blur" = "" ] && errMsg "BLUR=$blur MUST BE A NON-NEGATIVE FLOAT" ;; -p) # get paintval shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID PAINTVAL SPECIFICATION ---" checkMinus "$1" paintval=`expr "$1" : '\([0-9]*\)'` [ "$paintval" = "" ] && errMsg "PAINTVAL=$paintval MUST BE A NON-NEGATIVE INTEGER" ;; -e) # get edgegain shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID EDGEGAIN SPECIFICATION ---" checkMinus "$1" edgegain=`expr "$1" : '\([.0-9]*\)'` [ "$edgegain" = "" ] && errMsg "EDGEGAIN=$edgegain MUST BE A NON-NEGATIVE FLOAT" ;; -t) # get texturize shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID TEXTURIZE SPECIFICATION ---" checkMinus "$1" texturize=`echo "$1" | tr '[A-Z]' '[a-z]'` case "$texturize" in yes|y) texturize="ues" ;; no|n) texturize="no" ;; *) errMsg "--- TEXTURIZE=$texturize IS AN INVALID VALUE ---" esac ;; -r) # get reseed shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID RESEED SPECIFICATION ---" checkMinus "$1" reseed=`expr "$1" : '\([0-9]*,[0-9]*\)'` [ "$reseed" = "" ] && errMsg "RESEED=$reseed MUST BE A COMMA SEPARATED PAIR OF NON-NEGATIVE INTEGERS" ;; -s) # get soften shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID SOFTEN SPECIFICATION ---" checkMinus "$1" soften=`expr "$1" : '\([.0-9]*\)'` [ "$soften" = "" ] && errMsg "SOFTEN=$soften MUST BE A NON-NEGATIVE FLOAT" ;; -m) # get mix shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID MIX SPECIFICATION ---" checkMinus "$1" mix=`expr "$1" : '\([0-9]*\)'` [ "$mix" = "" ] && errMsg "MIX=$size MUST BE A NON-NEGATIVE INTEGER" test=`echo "$mix > 100" | bc` [ $test -eq 1 ] && errMsg "--- MIX=$mix MUST BE AN INTEGER BETWEEEN 0 AND 100 --- " ;; -) # 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/painteffect_1_$$.mpc" tmpB1="$dir/painteffect_1_$$.cache" trap "rm -f $tmpA1 $tmpB1; exit 0" 0 trap "rm -f $tmpA1 $tmpB1; exit 1" 1 2 3 15 # read the input image into the temporary cached image and test if valid convert -quiet "$infile" +repage "$tmpA1" || errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO size ---" # set up paint if [ $paintval -eq 0 ]; then painting="" else painting="-paint $paintval" fi # get seed values if [ "$reseed" = "" ]; then seeding1="" seeding2="" else seed1=`echo "$reseed" | cut -d, -f1` seed2=`echo "$reseed" | cut -d, -f2` seeding1="-seed $seed1" seeding2="-seed $seed2" fi # set up gamma if [ "$gammaval" = "1" ]; then gammaproc="" else gammaproc="-gamma $gammaval" fi if [ "$texturize" = "no" ]; then convert $tmpA1 $gammaproc -selective-blur 0x${blur}+20% $painting \ \( +clone -sharpen 0x2 -morphology edgein diamond:1 \ -evaluate multiply $edgegain -colorspace gray -negate \) \ -compose multiply -composite \ "$outfile" else convert $tmpA1 $gammaproc -selective-blur 0x${blur}+20% $painting +write mpr:img +delete \ \( mpr:img -sharpen 0x2 -morphology edgein diamond:1 -evaluate multiply $edgegain \ -colorspace gray -negate +write mpr:edge +delete \) \ \( mpr:img -fill black -colorize 100 $seeding1 -attenuate 2 +noise gaussian \ -negate -blur 0x$soften -colorspace gray -write mpr:noise1 +delete \) \ \( mpr:img \( mpr:noise1 \) \( mpr:noise1 -auto-level \) \ -compose color-dodge -composite -write mpr:txtr1 +delete \) \ \( mpr:img -attenuate 0.25 $seeding2 +noise random \ -colorspace gray -blur 0x$soften -write mpr:noise2 +delete \) \ \( mpr:img \( mpr:noise2 \) \( mpr:noise2 -auto-level \) \ -compose color-dodge -composite -write mpr:txtr2 +delete \) \ \( mpr:txtr1 mpr:txtr2 -define compose:args=$mix -compose blend -composite \ mpr:edge -compose multiply -composite \) \ "$outfile" fi exit 0