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|
#!/bin/bash
#
# Developed by Fred Weinhaus 7/16/2010 .......... revised 6/30/2011
#
# USAGE: bevelborder [-s size] [-m method] [-p percent] [-c contrast] [-b bcolor] [-a amount] [-t type] infile outfile
# USAGE: bevelborder [-h or -help]
#
# OPTIONS:
#
# -s size size of border in pixels; same in both dimensions;
# default equals 10% of min(imagewidth, imageheight)
# -m method bevel method; choices are: outer, inner or split;
# default=outer
# -p percent split percent between outer and inner bevel;
# 100 is outer bevel only; 0 is inner bevel only;
# default=50 applies only to method=split
# -c contrast contrast percent for bevel; 0<=integer<=100;
# default=50
# -b bcolor border coloring; any IM opaque color is allowed;
# default is no coloring
# -a amount amount of border coloring; 0<=integer<=100;
# default=25
# -t type type of compose; hardlight, linearlight or
# vividlight; default=hardlight
#
###
#
# NAME: BEVELBORDER
#
# PURPOSE: To applies a bevel effect to the border of an image.
#
# DESCRIPTION: BEVELBORDER applies a bevel effect to the border of an image.
# The bevel can be an outer bevel (raised effect), an inner bevel (depressed
# effect) or a split (mix) of the two. The border may also be colorized.
#
#
# ARGUMENTS:
#
# -s size ... SIZE is the dimensions of the border region in pixels. The same
# value is used in both dimensions. Values are integers greater than 0. The
# default is 10% of the min(width,height) of the image.
#
# -m method ... METHOD is the bevel method. Choices are: outer, which makes a
# raised effect; inner, which makes a depressed effect; and split, which is
# part raised and part depressed. The amount of each is controlled by the
# percent argument. The default is outer.
#
# -p percent ... PERCENT is the percent split between outer and inner bevels.
# Values are integers such that 0<=percent<=100. A value of 100 is full outer
# bevel. A value of 0 is full inner bevel. The default is 50 and only applies
# when the method=split.
#
# -c contrast ... CONTRAST percent for innerbevel or outerbevel. Values are
# integers between 0 and 100. The default=50.
#
# -b bcolor ... BCOLOR is the bevel colorization color. Any valid opaque IM
# color is allowed. The default is no additional colorization.
#
# -a amount ... AMOUNT of colorization. Values are integers between 0 and 100.
# The default=25.
#
# -t type ... TYPE of compose. Choices are: hardlight, linearlight and
# vividlight. The default=hardlight
#
# REQUIREMENTS: IM 6.5.9.0 or higher due to the use of -brightness-contrast.
#
# 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
size="" # bevel border amount in pixels
method="outer" # outer, inner, split
percent=50 # split percent; 0 to 100; 100 is outer; 0 is inner
contrast=50 # bevel contrast percent
bcolor="" # bevel color
amount=25 # amount of coloring; 0<=integer<=100
type="hardlight" # bevel compose method
# 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:" "$@"
sed >&2 -n '/^###/q; /^#/!q; s/^#//; s/^ //; 4,$p' "$PROGDIR/$PROGNAME"
}
usage2()
{
echo >&2 ""
echo >&2 "$PROGNAME:" "$@"
sed >&2 -n '/^######/q; /^#/!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 16 ]
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
;;
-s) # get size
shift # to get the next parameter
# test if parameter starts with minus sign
errorMsg="--- INVALID SIZE SPECIFICATION ---"
checkMinus "$1"
size=`expr "$1" : '\([0-9]*\)'`
[ "$size" = "" ] && errMsg "--- SIZE=$size MUST BE A NON-NEGATIVE INTEGER VALUE (with no sign) ---"
testA=`echo "$size <= 0" | bc`
[ $testA -eq 1 ] && errMsg "--- SIZE=$size MUST BE A POSITIVE INTEGER ---"
;;
-m) # get method
shift # to get the next parameter
# test if parameter starts with minus sign
errorMsg="--- INVALID METHOD SPECIFICATION ---"
checkMinus "$1"
# test type values
method=`echo "$1" | tr "[:upper:]" "[:lower:]"`
case "$method" in
outer|inner|split) ;; # do nothing - valid type
*) errMsg "--- METHOD=$method IS NOT A VALID VALUE ---" ;;
esac
;;
-p) # get percent
shift # to get the next parameter
# test if parameter starts with minus sign
errorMsg="--- INVALID PERCENT SPECIFICATION ---"
checkMinus "$1"
percent=`expr "$1" : '\([0-9]*\)'`
[ "$percent" = "" ] && errMsg "--- PERCENT=$percent MUST BE A NON-NEGATIVE INTEGER ---"
testA=`echo "$percent < 0" | bc`
testB=`echo "$percent > 100" | bc`
[ $testA -eq 1 -o $testB -eq 1 ] && errMsg "--- PERCENT=$percent MUST BE AN INTEGER BETWEEN 0 AND 100 ---"
;;
-c) # get contrast
shift # to get the next parameter
# test if parameter starts with minus sign
errorMsg="--- INVALID CONTRAST SPECIFICATION ---"
checkMinus "$1"
contrast=`expr "$1" : '\([0-9]*\)'`
[ "$contrast" = "" ] && errMsg "--- CONTRAST=$contrast MUST BE A NON-NEGATIVE INTEGER ---"
testA=`echo "$contrast < 0" | bc`
testB=`echo "$contrast > 100" | bc`
[ $testA -eq 1 -o $testB -eq 1 ] && errMsg "--- CONTRAST=$contrast MUST BE AN INTEGER BETWEEN 0 AND 100 ---"
;;
-b) # get bcolor
shift # to get the next parameter
# test if parameter starts with minus sign
errorMsg="--- INVALID BCOLOR SPECIFICATION ---"
checkMinus "$1"
bcolor="$1"
;;
-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 INTEGER ---"
testA=`echo "$amount < 0" | bc`
testB=`echo "$amount > 100" | bc`
[ $testA -eq 1 -o $testB -eq 1 ] && errMsg "--- AMOUNT=$amount MUST BE AN INTEGER BETWEEN 0 AND 100 ---"
;;
-t) # get type
shift # to get the next parameter
# test if parameter starts with minus sign
errorMsg="--- INVALID TYPE SPECIFICATION ---"
checkMinus "$1"
# test type values
type=`echo "$1" | tr "[:upper:]" "[:lower:]"`
case "$type" in
hardlight|linearlight|vividlight) ;; # do nothing - valid type
*) errMsg "--- METHOD=$method IS NOT A VALID VALUE ---" ;;
esac
;;
-) # 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
[ "$outfile" = "" ] && errMsg "NO OUTPUT FILE SPECIFIED"
tmpA="$dir/bevelborder_$$.mpc"
tmpB="$dir/bevelborder_$$.cache"
trap "rm -f $tmpA $tmpB; exit 0" 0
trap "rm -f $tmpA $tmpB; exit 1" 1 2 3 15
# read the input image into the TMP cached image.
convert -quiet -regard-warnings "$infile" +repage "$tmpA" ||
errMsg "--- FILE $infile NOT READABLE OR HAS ZERO SIZE ---"
# set default size
if [ "$size" = "" ]; then
size=`convert $tmpA -ping -format "%[fx:floor(0.1*min(w,h))]" info:`
wsize=$size
hsize=$size
fi
# get input image size
ww=`convert $infile -ping -format "%w" info:`
hh=`convert $infile -ping -format "%h" info:`
wd=`convert xc: -format "%[fx:$ww-2*$size]" info:`
ht=`convert xc: -format "%[fx:$hh-2*$size]" info:`
# adjust contrast and transparency to fractions
contr1=`convert xc: -format "%[fx:$contrast-100]" info:`
# setup bevel parameters
if [ "$method" = "outer" ]; then
wsize2=$size
hsize2=0
elif [ "$method" = "inner" ]; then
hsize2=$size
wsize2=0
elif [ "$method" = "split" ]; then
wsize2=`convert xc: -format "%[fx:floor($percent*$size/100)]" info:`
hsize2=$(($size-$wsize2))
fi
echo "ww=$ww; hh=$hh; wd=$wd; ht=$ht; wsize2=$wsize2; hsize2=$hsize2"
if [ "$bcolor" = "" ]; then
colorize=""
else
colorize="-fill $bcolor -colorize $amount%"
fi
# process image
convert $tmpA -size ${wd}x${ht} xc:"gray(50%)" \
\( -clone 1 -frame ${size}x${size}+${wsize2}+${hsize2} \
-auto-level -black-threshold 25% -white-threshold 75% $colorize \
-brightness-contrast 0,${contr1}% \
-clone 1 -gravity center -composite \) \
-delete 1 -compose $type -composite \
$outfile
exit 0
|
