#!/bin/bash # # Developed by Fred Weinhaus 2/13/2013 .......... revised 4/30/2015 # # ------------------------------------------------------------------------------ # # 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: colorglow -c coords [-a strength] [-s extent] [-f fuzzval] # [-l lightness] [h hue] infile outfile # # USAGE: colorglow [-help] # # OPTIONS: # # -c coords coordinates for locating glow region; comma separate # pair of integers within the image # -s strength strength (intensity) of glow; float>=0; default=100 # -e extent extent of glow; float>=0; default=5 # -f fuzzval fuzzval for locating glow region; 0<=float<=100; # default=20 # -l lightness percent change in lightness of glow color; # float>=0; default=0 # -h hue percent change in hue of glow color; # -100<=float<=100; default=0 # ### # # NAME: COLORGLOW # # PURPOSE: To apply color glow effect to an image. # # DESCRIPTION: COLORGLOW applies color glow effect to an image. The user must # supply a set of x,y coordinates within the image to located a contiguous # region of color with some fuzz value tolerance. The color will be extracted # from those coordinates automatically. # # # ARGUMENTS: # # -c coords ... COORDS is the set of x,y coordinates to locate a contiguous # region of color where the glow will be applied. # # -s strength ... strength (intensity) of glow effect. Values are floats greater # or equal to 0. The default=100. # # -e extent ... extent is the extenting extent of the glow. Values are # floats greater or equal to 0. The default=5. # # -f fuzzval ... FUZZVAL for extracting the contiguous region of color. Values # are floats between 0 and 100. The default=20. # # -l lightness ... LIGHTNESS is the percent change in lightness of the glow # color. Values are floats greater or equal to 0. The default=0. # # -h hue ... HUE is the percent change in hue of the glow # color. Values are floats between -100 and 100. The default=0. # # NOTE: Results may vary with versions of IM prior to 6.7.7.8 due to color # space changes. One can get close by varying the arguments, typically # raising the strength to 150 and increasing extent by 1 or 2. # # 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 coords="" # coords for locating color strength=100 # strength (intensity, attenuation); float>=0 extent=5 # extenting extent; float>=0 fuzzval=20 # fuzzval for floodfill; float 0 to 100 lightness=0 # percent increase in lightness; float>=0 hue=0 # percent increase in hue; float>=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" } getMinMax() { img="$1" # statistics computed as percent (of dynamic range) values if [ "$im_version" -ge "06030901" ] then min=`convert $img -format "%[min]" info:` max=`convert $img -format "%[max]" info:` min=`convert xc: -format "%[fx:100*$min/quantumrange]" info:` max=`convert xc: -format "%[fx:100*$max/quantumrange]" info:` else data=`convert $img -verbose info:` min=`echo "$data" | sed -n 's/^.*[Mm]in:.*[(]\([0-9.]*\).*$/\1/p ' | head -1` max=`echo "$data" | sed -n 's/^.*[Mm]ax:.*[(]\([0-9.]*\).*$/\1/p ' | head -1` min=`convert xc: -format "%[fx:100*$min]" info:` max=`convert xc: -format "%[fx:100*$max]" info:` fi } # 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 -help) # help information echo "" usage2 exit 0 ;; -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" : '\([0-9]*,[0-9]*\)'` [ "$coords" = "" ] && errMsg "--- COORDS=$coords MUST BE A NON-NEGATIVE COMMA SEPARATED PAIR OF INTEGER VALUES (with no sign) ---" ;; -s) # get strength shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID STRENGTH SPECIFICATION ---" checkMinus "$1" strength=`expr "$1" : '\([.0-9]*\)'` [ "$strength" = "" ] && errMsg "--- STRENGTH=$strength MUST BE A NON-NEGATIVE FLOAT VALUE (with no sign) ---" ;; -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 FLOAT (with no sign) ---" ;; -f) # get fuzzval shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID FUZZVAL SPECIFICATION ---" checkMinus "$1" fuzzval=`expr "$1" : '\([.0-9]*\)'` [ "$fuzzval" = "" ] && errMsg "--- FUZZVAL=$fuzzval MUST BE A NON-NEGATIVE FLOAT VALUE (with no sign) ---" test1=`echo "$fuzzval < 0" | bc` test2=`echo "$fuzzval > 100" | bc` [ $test1 -eq 1 -o $test2 -eq 1 ] && errMsg "--- FUZZVAL=$fuzzval MUST BE A FLOAT BETWEEN 0 AND 100 ---" ;; -l) # get lightness shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID LIGHTNESS SPECIFICATION ---" checkMinus "$1" lightness=`expr "$1" : '\([.0-9]*\)'` [ "$lightness" = "" ] && errMsg "--- LIGHTNESS=$lightness MUST BE A NON-NEGATIVE FLOAT VALUE (with no sign) ---" ;; -h) # get hue shift # to get the next parameter # test if parameter starts with minus sign errorMsg="--- INVALID HUE SPECIFICATION ---" #checkMinus "$1" hue=`expr "$1" : '\([-.0-9]*\)'` [ "$hue" = "" ] && errMsg "--- HUE=$hue MUST BE A NON-NEGATIVE FLOAT VALUE (with no sign) ---" test1=`echo "$hue < -100" | bc` test2=`echo "$hue > 100" | bc` [ $test1 -eq 1 -o $test2 -eq 1 ] && errMsg "--- HUE=$hue MUST BE A FLOAT BETWEEN -100 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 [ "$outfile" = "" ] && errMsg "--- NO OUTPUT FILE SPECIFIED ---" # set up temporary files tmpA1="$dir/colorglow_A_$$.mpc" tmpA2="$dir/colorglow_A_$$.cache" trap "rm -f $tmpA1 $tmpA2;" 0 trap "rm -f $tmpA1 $tmpA2; exit 1" 1 2 3 15 trap "rm -f $tmpA1 $tmpA2; exit 1" ERR # read input image convert -quiet "$infile" +repage "$tmpA1" || echo "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" # 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` : <