#!/bin/bash # # Developed by Fred Weinhaus 12/28/2015 .......... revised 12/28/2015 # # ------------------------------------------------------------------------------ # # 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: furrowed [-a amount] [-s smoothing] [-g gain ] [-b brightness ] # [-S saturation ] infile outfile # USAGE: furrowed [-h or -help] # # OPTIONS: # # -a amount amount of furrowing; float>=0; default=2 # -s smoothing smoothing; float>=0; must be less than amount; # default=0; # -g gain gain; float>=0; default=10 # -b brightness brightness; integer>=0; default=100 (no change) # -S saturation saturation; integer>=0; default=30 # ### # # NAME: FURROWED # # PURPOSE: To apply a furrowed-looking effect to an image creating a "gritty" look. # # DESCRIPTION: FURROWED applies a furrowed-looking effect to an image to # enhance wrinkles creating a "gritty" look. # # ARGUMENTS: # # -a amount ... AMOUNT of furrowing. Values are floats>=0. Amount must be # larger than smoothing. The default=2. # # -s smoothing ... SMOOTHING. Values are floats floats>=0; Smoothing must be # less than amount. The default=0 (no smoothing). # # -g gain ... GAIN. Values are floats>=0. The default=10. # # -b brightness ... BRIGHTNESS. Values are integers>=0. The default=100 # (no change). # # -s saturation ... SATURATION. Values are integer>=0. A value of 100 is no # change. The default=30. # # REQUIREMENTS: IM 6.6.1.9 due to the use of -morphology DoG # # 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 amount=2 # float>=0 smoothing=0 # float>=0 gain=10 # float>=0 brightness=100 # integer>=0 saturation=50 # integer>=0 # 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 12 ] 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 ;; -a) # get amount shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID AMOUNT SPECIFICATION ---" checkMinus "$1" amount=`expr "$1" : '\([.0-9]*\)'` [ "$amount" = "" ] && errMsg "--- AMOUNT=$amount MUST BE A NON-NEGATIVE FLOAT VALUE (with no sign) ---" ;; -s) # get smoothing shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID SMOOTHING SPECIFICATION ---" checkMinus "$1" smoothing=`expr "$1" : '\([.0-9]*\)'` [ "$smoothing" = "" ] && errMsg "--- SMOOTHING=$smoothing MUST BE A NON-NEGATIVE FLOAT VALUE ---" ;; -g) # get gain shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID GAIN SPECIFICATION ---" checkMinus "$1" gain=`expr "$1" : '\([.0-9]*\)'` [ "$gain" = "" ] && errMsg "--- GAIN=$gain MUST BE A NON-NEGATIVE FLOAT VALUE (with no sign) ---" ;; -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 VALUE (with no sign) ---" ;; -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 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/furrowed_1_$$.mpc" tmpB1="$dir/furrowed_1_$$.cache" trap "rm -f $tmpA1 $tmpB1;" 0 trap "rm -f $tmpA1 $tmpB1; exit 1" 1 2 3 15 trap "rm -f $tmpA1 $tmpB1; exit 1" ERR # read the input image into the temporary cached image and test if valid convert -quiet "$infile" +repage "$tmpA1" || errMsg "--- 1 FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO size ---" # process image convert $tmpA1 -auto-level \ \( -clone 0 -colorspace gray \) \ \( -clone 1 -bias 50% -define convolve:scale=$gain! -morphology Convolve DoG:0,${smoothing},${amount} \) \ +swap -compose overlay -composite \ -modulate ${brightness},${saturation},100 \ "$outfile" exit 0