Another nice scritp from fred.
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Zed A. Shaw
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scripts/magick/stainedglass
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scripts/magick/stainedglass
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#!/bin/bash
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#
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# Developed by Fred Weinhaus 6/12/2010 .......... 11/12/2017
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#
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# ------------------------------------------------------------------------------
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#
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# Licensing:
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#
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# Copyright © Fred Weinhaus
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#
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# My scripts are available free of charge for non-commercial use, ONLY.
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#
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# For use of my scripts in commercial (for-profit) environments or
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# non-free applications, please contact me (Fred Weinhaus) for
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# licensing arrangements. My email address is fmw at alink dot net.
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#
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# If you: 1) redistribute, 2) incorporate any of these scripts into other
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# free applications or 3) reprogram them in another scripting language,
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# then you must contact me for permission, especially if the result might
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# be used in a commercial or for-profit environment.
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#
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# My scripts are also subject, in a subordinate manner, to the ImageMagick
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# license, which can be found at: http://www.imagemagick.org/script/license.php
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#
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# ------------------------------------------------------------------------------
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#
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####
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#
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# USAGE: stainedglass [-k kind] [-s size] [-o offset] [-n ncolors] [-b bright]
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# [-e ecolor] [-t thick] [-r rseed] [-a] infile outfile
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# USAGE: stainedglass [-h or -help]
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#
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# OPTIONS:
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#
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# -k kind kind of stainedglass cell shape; choices are: square
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# (or s), hexagon (or h), random (or r); default=random
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# -s size size of cell; integer>0; default=16
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# -o offset random offset amount; integer>=0; default=6;
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# only applies to kind=random
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# -n ncolors number of desired reduced colors for the output;
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# integer>1; default is no color reduction
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# -b bright brightness value in percent for output image;
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# integer>=0; default=100
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# -e ecolor color for edge or border around each cell; any valid
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# IM color; default=black
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# -t thick thickness for edge or border around each cell;
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# integer>=0; default=1; zero means no edge or border
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# -r rseed random number seed value; integer>=0; if seed provided,
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# then image will reproduce; default is no seed, so that
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# each image will be randomly different; only applies
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# to kind=random
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# -a use average color of cell rather than color at center
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# of cell; default is center color
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#
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###
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#
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# NAME: STAINEDGLASS
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#
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# PURPOSE: Applies a stained glass cell effect to an image.
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#
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# DESCRIPTION: STAINEDGLASS applies a stained glass cell effect to an image. The
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# choices of cell shapes are hexagon, square and randomized square. The cell
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# size and border around the cell can be specified.
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#
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#
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# OPTIONS:
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#
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# -k kind ... KIND of stainedglass cell shape; choices are: square (or s),
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# hexagon (or h), random (or r). The latter is a square with each corner
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# randomly offset. The default=random.
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#
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# -s size ... SIZE of stained glass cells. Values are integers>=0. The
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# default=16.
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#
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# -o offset ... OFFSET is the random offset amount for the case of kind=random.
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# Values are integers>=0. The default=6.
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#
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# -n ncolors ... NCOLORS is the number of desired reduced colors in the output.
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# Values are integers>1. The default is no color reduction. Larger number of
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# colors takes more time to color reduce.
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#
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# -b bright ... BRIGHTNESS value in percent for the output image. Values are
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# integers>=0. The default=100 means no change in brightness.
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#
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# -e ecolor ... ECOLOR is the color for the edge or border around each cell.
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# Any valid IM color is allowed. The default=black.
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#
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# -t thick ... THICK is the thickness for the edge or border around each cell.
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# Values are integers>=0. The default=1. A value of zero means no edge or
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# border will be included.
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#
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# -r rseed ... RSEED is the random number seed value for kind=random. Values
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# are integers>=0. If a seed is provided, then the resulting image will be
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# reproducable. The default is no seed. In that case, each resulting image
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# will be randomly different.
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#
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# -a ... use AVERAGE color of cell rather than color at center of shell;
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# default is center color. The average value will be accurate only for odd
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# square shapes with IM 6.5.9.0 or higher. All others cases will use only an
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# approximate average.
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#
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# Thanks to Anthony Thyssen for critiqing the original version and for
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# several useful suggestions for improvement.
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#
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# NOTE: This script will be slow prior to IM 6.8.3.10 due to the need to
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# extract color values for each cell center point across the input image.
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# A progress meter is therefore provided to the terminal. A speed-up is
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# available via a -process function, getColors. To obtain getColors,
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# contact me. It requires IM 6.6.2-10 or higher.
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#
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# IMPORTANT: This script will fail due to an unintended restriction in the
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# txt: format starting with IM 6.9.9.1 and IM 7.0.6.2. It has been fixed at
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# IM 6.9.9.23 and IM 7.0.7.11.
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#
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# REQUIREMENTS: Does not produce a proper set of edges/borders around each
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# cell under Q8, due to insufficient graylevel resolution (0 and 255)
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# to handle more that 255 cells.
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#
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# CAVEAT: No guarantee that this script will work on all platforms,
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# nor that trapping of inconsistent parameters is complete and
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# foolproof. Use At Your Own Risk.
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#
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######
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#
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# set default values
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kind="random" # random, square, hexagon
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size=16 # cell size
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offset=6 # pixel amount to randomly add or subtract to square corners
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ncolors="" # number of output colors
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bright=100 # brightness adjust
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ecolor="black" # edge color
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thick=1 # edge thickness
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rseed="" # seed for random
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average="no" # preprocess for cell average
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# set directory for temporary files
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dir="." # suggestions are dir="." or dir="/tmp"
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# set up functions to report Usage and Usage with Description
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PROGNAME=`type $0 | awk '{print $3}'` # search for executable on path
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PROGDIR=`dirname $PROGNAME` # extract directory of program
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PROGNAME=`basename $PROGNAME` # base name of program
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usage1()
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{
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echo >&2 ""
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echo >&2 "$PROGNAME:" "$@"
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sed >&2 -e '1,/^####/d; /^###/g; /^#/!q; s/^#//; s/^ //; 4,$p' "$PROGDIR/$PROGNAME"
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}
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usage2()
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{
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echo >&2 ""
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echo >&2 "$PROGNAME:" "$@"
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sed >&2 -e '1,/^####/d; /^######/g; /^#/!q; s/^#*//; s/^ //; 4,$p' "$PROGDIR/$PROGNAME"
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}
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# function to report error messages
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errMsg()
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{
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echo ""
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echo $1
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echo ""
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usage1
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exit 1
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}
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# function to test for minus at start of value of second part of option 1 or 2
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checkMinus()
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{
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test=`echo "$1" | grep -c '^-.*$'` # returns 1 if match; 0 otherwise
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[ $test -eq 1 ] && errMsg "$errorMsg"
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}
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# test for correct number of arguments and get values
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if [ $# -eq 0 ]
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then
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# help information
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echo ""
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usage2
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exit 0
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elif [ $# -gt 19 ]
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then
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errMsg "--- TOO MANY ARGUMENTS WERE PROVIDED ---"
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else
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while [ $# -gt 0 ]
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do
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# get parameter values
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case "$1" in
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-help) # help information
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echo ""
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usage2
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exit 0
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;;
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-k) # get kind
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID KIND SPECIFICATION ---"
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checkMinus "$1"
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kind=`echo "$1" | tr '[A-Z]' '[a-z]'`
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case "$kind" in
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hexagon|h) kind="hexagon" ;;
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square|s) kind="square" ;;
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random|r) kind="random" ;;
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*) errMsg "--- KIND=$kind IS AN INVALID VALUE ---" ;;
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esac
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;;
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-s) # get size
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID SIZE SPECIFICATION ---"
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checkMinus "$1"
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size=`expr "$1" : '\([0-9]*\)'`
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[ "$size" = "" ] && errMsg "--- SIZE=$size MUST BE A NON-NEGATIVE INTEGER (with no sign) ---"
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test1=`echo "$size < 1" | bc`
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[ $test1 -eq 1 ] && errMsg "--- SIZE=$size MUST BE A POSITIVE INTEGER ---"
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;;
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-o) # get offset
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID OFFSET SPECIFICATION ---"
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checkMinus "$1"
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offset=`expr "$1" : '\([0-9]*\)'`
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[ "$offset" = "" ] && errMsg "--- OFFSET=$offset MUST BE A NON-NEGATIVE INTEGER ---"
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;;
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-n) # get ncolors
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID NCOLORS SPECIFICATION ---"
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checkMinus "$1"
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ncolors=`expr "$1" : '\([0-9]*\)'`
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[ "$ncolors" = "" ] && errMsg "--- NCOLORS=$ncolors MUST BE A NON-NEGATIVE INTEGER (with no sign) ---"
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test1=`echo "$ncolors < 2" | bc`
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[ $test1 -eq 1 ] && errMsg "--- NCOLORS=$ncolors MUST BE AN GREATER THAN 1 ---"
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;;
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-b) # get bright
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID BRIGHT SPECIFICATION ---"
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checkMinus "$1"
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bright=`expr "$1" : '\([0-9]*\)'`
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[ "$bright" = "" ] && errMsg "--- BRIGHT=$bright MUST BE A NON-NEGATIVE INTEGER ---"
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;;
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-e) # get ecolor
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID ECOLOR SPECIFICATION ---"
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checkMinus "$1"
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ecolor="$1"
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;;
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-t) # get thick
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID THICK SPECIFICATION ---"
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checkMinus "$1"
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thick=`expr "$1" : '\([0-9]*\)'`
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[ "$thick" = "" ] && errMsg "--- THICK=$thick MUST BE A NON-NEGATIVE INTEGER ---"
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;;
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-r) # get rseed
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shift # to get the next parameter
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# test if parameter starts with minus sign
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errorMsg="--- INVALID RSEED SPECIFICATION ---"
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checkMinus "$1"
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rseed=`expr "$1" : '\([0-9]*\)'`
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[ "$rseed" = "" ] && errMsg "--- RSEED=$rseed MUST BE A NON-NEGATIVE INTEGER ---"
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;;
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-a) # get average
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average="yes"
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;;
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-) # STDIN and end of arguments
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break
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;;
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-*) # any other - argument
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errMsg "--- UNKNOWN OPTION ---"
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;;
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*) # end of arguments
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break
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;;
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esac
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shift # next option
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done
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#
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# get infile and outfile
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infile="$1"
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outfile="$2"
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fi
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# test that infile provided
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[ "$infile" = "" ] && errMsg "NO INPUT FILE SPECIFIED"
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# test that outfile provided
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[ "$outfile" = "" ] && errMsg "NO OUTPUT FILE SPECIFIED"
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# setup temporary images and auto delete upon exit
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tmpA1="$dir/stainedglass_1_$$.mpc"
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tmpB1="$dir/stainedglass_1_$$.cache"
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tmpA2="$dir/stainedglass_2_$$.mpc"
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tmpB2="$dir/stainedglass_2_$$.cache"
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tmpA3="$dir/stainedglass_3_$$.mpc"
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tmpB3="$dir/stainedglass_3_$$.cache"
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tmpC="$dir/stainedglass_C_$$.txt"
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tmpG="$dir/stainedglass_G_$$.txt"
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trap "rm -f $tmpA1 $tmpB1 $tmpA2 $tmpB2 $tmpA3 $tmpB3 $tmpC $tmpG;" 0
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trap "rm -f $tmpA1 $tmpB1 $tmpA2 $tmpB2 $tmpA3 $tmpB3 $tmpC $tmpG; exit 1" 1 2 3 15
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# does not seem to produce output with the following????
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#trap "rm -f $tmpA1 $tmpB1 $tmpA2 $tmpB2 $tmpA3 $tmpB3 $tmpC $tmpG; exit 1" ERR
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# set up color reduction
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if [ "$ncolors" != "" ]; then
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reduce="-monitor +dither -colors $ncolors +monitor"
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echo ""
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echo "Reducing Colors:"
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else
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reduce=""
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fi
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im_version=`convert -list configure | \
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sed '/^LIB_VERSION_NUMBER */!d; s//,/; s/,/,0/g; s/,0*\([0-9][0-9]\)/\1/g' | head -n 1`
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# colorspace swapped at IM 6.7.5.5, but not properly fixed until 6.7.6.6
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# before swap verbose info reported colorspace=RGB after colorspace=sRGB
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if [ "$im_version" -ge "06070606" ]; then
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cspace1="sRGB"
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cspace2="sRGBA"
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else
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cspace1="RGB"
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cspace2="RGBA"
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fi
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# no need for setcspace for grayscale or channels after 6.8.5.4
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if [ "$im_version" -gt "06080504" ]; then
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cspace1=""
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cspace2=""
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fi
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# get colorspace
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colorspace=`convert $infile -ping -format "%[colorspace]" info:`
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# set up for modulate
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# note there seems to be a change in -modulate (for HSL) between IM 6.8.4.6 and 6.8.4.7 that is noticeable in the output
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if [ "$bright" != "100" -a "$colorspace" = "CMYK" ]; then
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modulation="-colorspace $cspace1 -modulate ${bright},100,100 -colorspace cmyk"
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elif [ "$bright" != "100" -a "$colorspace" = "CMYKA" ]; then
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modulation="-colorspace $cspace2 -modulate ${bright},100,100 -colorspace cmyka"
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elif [ "$bright" != "100" ]; then
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modulation="-modulate ${bright},100,100"
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else
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modulation=""
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fi
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# read the input image and filter image into the temp files and test validity.
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convert -quiet "$infile" $reduce $modulation +repage "$tmpA1" ||
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errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---"
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# preprocess for average color
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if [ "$average" = "yes" -a "$im_version" -ge "06050900" -a "$kind" = "square" ]; then
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dim=`convert xc: -format "%[fx:round(($size-1)/2)]" info:`
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convert $tmpA1 -define convolve:scale=! -morphology convolve square:$dim $tmpA1
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elif [ "$average" = "yes" -a "$im_version" -ge "06050900" -a "$kind" != "square" ]; then
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dim=`convert xc: -format "%[fx:round(($size-1)/2)+0.5]" info:`
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convert $tmpA1 -define convolve:scale=! -morphology convolve disk:$dim $tmpA1
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elif [ "$average" = "yes" ]; then
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dim=`convert xc: -format "%[fx:round(($size-1)/2)]" info:`
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convert $tmpA1 -blur ${dim}x65000 $tmpA1
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fi
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# test if -process module getcolors exists
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if [ "$im_version" -ge "06050210" ]; then
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process_test=`convert -list module | grep "getColors"`
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fi
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#echo "process_test=$process_test;"
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ww=`convert $tmpA1 -ping -format "%w" info:`
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hh=`convert $tmpA1 -ping -format "%h" info:`
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ww1=$(($ww-1))
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hh1=$(($hh-1))
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ww2=`convert xc: -format "%[fx:$ww1+round($size/2)]" info:`
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hh2=`convert xc: -format "%[fx:$hh1+round($size/2)]" info:`
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#echo "ww=$ww; hh=$hh; ww1=$ww1; hh1=$hh1; ww2=$ww2; hh2=$hh2;"
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# get qrange
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qrange=`convert xc: -format "%[fx:quantumrange]" info:`
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# init colors file
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echo "# ImageMagick pixel enumeration: $ww,$hh,255,rgb" > $tmpC
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# init increment grays file
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touch $tmpG
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if [ "$kind" = "random" ]; then
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# need to add 1 to offset as awk rand is exclusive between 0 and 1
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offset=$(($offset+1))
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awk -v size="$size" -v ww1="$ww1" -v hh1="$hh1" -v ww2="$ww2" -v hh2="$hh2" -v offset="$offset" -v rseed="$rseed" '
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BEGIN { if (rseed=="") {srand();} else {srand(rseed);} y=0; while ( y < hh2 )
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{ x=0; while (x < ww2 )
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{ if (x>ww1) {x=ww1;} if (y>hh1) {y=hh1;}
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rx=rand(); if (rx<0.5) {signx=-1;} else {signx=1;}
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offx=int(signx*rand()*offset);
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xx=x+offx; if (xx<0) {xx=0}; if (xx>ww1) {xx=ww1};
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ry=rand(); if (ry<0.5) {signy=-1;} else {signy=1;}
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offy=int(signy*rand()*offset);
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yy=y+offy; if (yy<0) {yy=0}; if (yy>hh1) {yy=hh1};
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print xx","yy": (255,255,255)"; x=x+size; }
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y=y+size; } }' >> $tmpC
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awk -v size="$size" -v ww1="$ww1" -v hh1="$hh1" -v ww2="$ww2" -v hh2="$hh2" -v qrange="$qrange" -v offset="$offset" -v rseed="$rseed" '
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BEGIN { if (rseed=="") {srand();} else {srand(rseed);} k=0; y=0; while ( y < hh2 )
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{ x=0; while (x < ww2 )
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{ if (x>ww1) {x=ww1;} if (y>hh1) {y=hh1;}
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rx=rand(); if (rx<0.5) {signx=-1;} else {signx=1;}
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offx=int(signx*rand()*offset);
|
||||
xx=x+offx; if (xx<0) {xx=0}; if (xx>ww1) {xx=ww1};
|
||||
ry=rand(); if (ry<0.5) {signy=-1;} else {signy=1;}
|
||||
offy=int(signy*rand()*offset);
|
||||
yy=y+offy; if (yy<0) {yy=0}; if (yy>hh1) {yy=hh1};
|
||||
g=(k % 256);
|
||||
print xx,yy" gray("g")"; k++; x=x+size; }
|
||||
y=y+size; } }' >> $tmpG
|
||||
|
||||
elif [ "$kind" = "hexagon" ]; then
|
||||
awk -v size="$size" -v ww1="$ww1" -v hh1="$hh1" -v ww2="$ww2" -v hh2="$hh2" '
|
||||
BEGIN { j=0; y=0; while ( y < hh2 )
|
||||
{ if (j%2==0) {x=int((size+0.5)/2);} else {x=0;} while (x < ww2 )
|
||||
{ if (x>ww1) {x=ww1;} if (y>hh1) {y=hh1;} print x","y": (255,255,255)"; x=x+size; }
|
||||
j++; y=y+size; } }' >> $tmpC
|
||||
|
||||
awk -v size="$size" -v ww1="$ww1" -v hh1="$hh1" -v ww2="$ww2" -v hh2="$hh2" -v qrange="$qrange" '
|
||||
BEGIN { j=0; k=0; y=0; while ( y < hh2 )
|
||||
{ if (j%2==0) {x=int((size+0.5)/2);} else {x=0;} while (x < ww2 )
|
||||
{ if (x>ww1) {x=ww1;} if (y>hh1) {y=hh1;} g=(k % 256); print x,y" gray("g")"; k++; x=x+size; }
|
||||
j++; y=y+size; } }' >> $tmpG
|
||||
|
||||
elif [ "$kind" = "square" ]; then
|
||||
awk -v size="$size" -v ww1="$ww1" -v hh1="$hh1" -v ww2="$ww2" -v hh2="$hh2" '
|
||||
BEGIN { y=0; while ( y < hh2 )
|
||||
{ x=0; while (x < ww2 )
|
||||
{ if (x>ww1) {x=ww1;} if (y>hh1) {y=hh1;} print x","y": (255,255,255)"; x=x+size; }
|
||||
y=y+size; } }' >> $tmpC
|
||||
|
||||
awk -v size="$size" -v ww1="$ww1" -v hh1="$hh1" -v ww2="$ww2" -v hh2="$hh2" -v qrange="$qrange" '
|
||||
BEGIN { k=0; y=0; while ( y < hh2 )
|
||||
{ x=0; while (x < ww2 )
|
||||
{ if (x>ww1) {x=ww1;} if (y>hh1) {y=hh1;} g=(k % 256); print x,y" gray("g")"; k++; x=x+size; }
|
||||
y=y+size; } }' >> $tmpG
|
||||
|
||||
fi
|
||||
|
||||
if [ "$thick" = "0" ]; then
|
||||
if [ "$im_version" -ge "06080310" ]; then
|
||||
convert $tmpA1 \( -background black $tmpC \) \
|
||||
-alpha off -compose copy_opacity -composite \
|
||||
sparse-color:- |\
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi '@-' \
|
||||
"$outfile"
|
||||
elif [ "$im_version" -lt "06060210" -o "$process_test" != "getColors" ]; then
|
||||
echo ""
|
||||
echo "Progress:"
|
||||
echo ""
|
||||
convert $tmpA1 \( -background black $tmpC \) \
|
||||
-alpha off -compose copy_opacity -composite -monitor \
|
||||
txt:- |\
|
||||
sed '1d; / 0) /d; s/:.* /,/;' |\
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi '@-' \
|
||||
+monitor "$outfile"
|
||||
echo ""
|
||||
else
|
||||
convert $tmpA1 \( -background black $tmpC \) \
|
||||
-alpha off -compose copy_opacity -composite $tmpA1
|
||||
convert $tmpA1 -alpha on -process "getColors" null: > $tmpC
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi "@$tmpC" \
|
||||
"$outfile"
|
||||
fi
|
||||
|
||||
else
|
||||
if [ "$im_version" -ge "06080310" ]; then
|
||||
convert $tmpA1 \( -background black $tmpC \) \
|
||||
-alpha off -compose copy_opacity -composite \
|
||||
sparse-color:- |\
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi '@-' $tmpA2
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi "@$tmpG" \
|
||||
-auto-level -morphology edge diamond:$thick -threshold 0 -negate $tmpA3
|
||||
convert $tmpA2 $tmpA3 -alpha off -compose copy_opacity -composite \
|
||||
-compose over -background $ecolor -flatten \
|
||||
"$outfile"
|
||||
elif [ "$im_version" -lt "06060210" -o "$process_test" != "getColors" ]; then
|
||||
echo ""
|
||||
echo "Progress:"
|
||||
echo ""
|
||||
convert $tmpA1 \( -background black $tmpC \) \
|
||||
-alpha off -compose copy_opacity -composite -monitor \
|
||||
txt:- |\
|
||||
sed '1d; / 0) /d; s/:.* /,/;' |\
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi '@-' +monitor $tmpA2
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi "@$tmpG" \
|
||||
-auto-level -morphology edge diamond:$thick -threshold 0 -negate $tmpA3
|
||||
convert $tmpA2 $tmpA3 -alpha off -compose copy_opacity -composite \
|
||||
-compose over -background $ecolor -flatten \
|
||||
"$outfile"
|
||||
echo ""
|
||||
else
|
||||
convert $tmpA1 \( -background black $tmpC \) \
|
||||
-alpha off -compose copy_opacity -composite $tmpA1
|
||||
convert $tmpA1 -alpha on -process "getColors" null: > $tmpC
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi "@$tmpC" $tmpA2
|
||||
convert -size ${ww}x${hh} xc: -sparse-color voronoi "@$tmpG" \
|
||||
-auto-level -morphology edge diamond:$thick -threshold 0 -negate $tmpA3
|
||||
convert $tmpA2 $tmpA3 -alpha off -compose copy_opacity -composite \
|
||||
-compose over -background $ecolor -flatten \
|
||||
"$outfile"
|
||||
fi
|
||||
fi
|
||||
|
||||
exit 0
|
||||
Loading…
Add table
Add a link
Reference in a new issue