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373 lines
13 KiB
373 lines
13 KiB
9 months ago
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#!/bin/bash
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#
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# Developed by Fred Weinhaus 2/24/2022 .......... revised 2/24/2022
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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: position [-m method] [-d direction] [-o offset] [-l leftpt]
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# [-r rightpt] [-b bcolor] [-f format] [-T trim] infile1 infile2 outfile
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#
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# USAGE: position [-h or -help]
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#
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# OPTIONS:
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#
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# -m method positioning method; choices are: offset or cpoints;
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# default=offset
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# -d direction positioning direction; choices are: horizontal or
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# vertical; default=horizontal
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# -o offset offset +X+Y values for left/ope edge of second image
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# relative to right/bottom edge of first image. Used when
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# method=offset; positive or negative offsets are allowed;
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# default=+0+0
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# -l leftpt left (first) image control x,y point; default=0,0
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# -r rightpt right (second) image control x,y point; default=0,0
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# -b bcolor background color to fill empty spaces
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# -f format output color format; choices are: RG, GB, BR or RGB;
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# default=RGB
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# -T trim trim output to remove any background fill areas
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#
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###
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#
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# NAME: POSITION
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#
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# PURPOSE: To position one image relative to another image.
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#
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# DESCRIPTION: POSITION aligns or offsets one image relative to a another
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# image. The second image is positioned relative to the first image either
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# horizontally or vertically. Positioning can be done using X and Y offsets
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# or by specifying one controll point for each image.
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#
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# OPTIONS:
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#
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# -m method ... positioning METHOD. The choices are: offset (o) or cpoints (c).
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# The default=offset.
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#
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# -d direction ... positioning DIRECTION. The choices are: horizontal (h) or
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# vertical (v). The default=horizontal.
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#
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# -o offset ... OFFSET +X+Y values for left/top edge of second image relative
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# to right/bottom edge of first image. This is used when method=offset.
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# Position X and Y offsets may be either positive or negative. The default=+0+0
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#
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# -l leftpt ... LEFT (first) image control x,y POINT. Values are integers>0.
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# The default=0,0
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#
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# -r rightpt ... RIGHT (second) image control x,y POINT. Values are integers>0.
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# The default=0,0
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#
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# -b bcolor ... BGCOLOR is the background color to fill empty spaces. Any
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# Imagemagick color is allowed. The default=none (transparent)
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#
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# -f format ... output color FORMAT; The choices are: RG, GB, BR or RGB.
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# RGB is the normal color image. RG, for example, is first image in Red and
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# second image in Green and any overlay will show in yellow (mix of Red and
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# Green). The default=RGB.
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#
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# -T trim ... TRIM output to remove any background fill areas.
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# Choices are: yes (y) or no (n). The default=no. Background color must be
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# unique in the image for the trim to work properly.
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#
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# LIMITATIONS: TRIM option only works for Imagemagick 7.0.9-0 or higher.
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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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method="offset" # offset or cpoints
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direction="horizontal" # horizontal or vertical
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offset=+0+0 # offset
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#offset=-90-40 # offset
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leftpt="0,0" # left image single control point
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rightpt="0,0" # right image single control point
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#leftpt="287,49" # left image single control point
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#rightpt="76,89" # right image single control point
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bcolor=none # background color
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format="RGB" # RG or GB or BR or RGB output color format
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trim="no" # trim output; yes or no
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# set directory for temporary files
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tmpdir="/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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-h|-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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-m) # method
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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 METHOD SPECIFICATION ---"
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checkMinus "$1"
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method=`echo "$1" | tr "[:upper:]" "[:lower:]"`
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case "$method" in
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offset|o) method="offset" ;;
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cpoints|c) method="cpoints" ;;
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*) errMsg "--- METHOD=$method IS AN INVALID VALUE ---"
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esac
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;;
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-d) # direction
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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 DIRECTION SPECIFICATION ---"
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checkMinus "$1"
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direction=`echo "$1" | tr "[:upper:]" "[:lower:]"`
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case "$direction" in
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horizontal|h) direction="horizontal" ;;
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vertical|v) direction="vertical" ;;
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*) errMsg "--- DIRECTION=$direction IS AN INVALID VALUE ---"
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esac
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;;
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-o) # 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" : '\([-+][0-9]*[-+][0-9]*\)'`
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[ "$offset" = "" ] && errMsg "--- OFFSET=$offset IS INVALID ---"
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;;
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-l) # leftpt
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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 LEFTPT SPECIFICATION ---"
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checkMinus "$1"
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leftpt=`expr "$1" : '\([0-9]*,[0-9]*\)'`
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[ "$leftpt" = "" ] && errMsg "--- LEFTPT=$leftpt IS INVALID ---"
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;;
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-r) # rightpt
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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 RIGHTPT SPECIFICATION ---"
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checkMinus "$1"
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rightpt=`expr "$1" : '\([0-9]*,[0-9]*\)'`
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[ "$rightpt" = "" ] && errMsg "--- RIGHTPT=$rightpt IS INVALID ---"
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;;
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-b) # bcolor
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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 BCOLOR SPECIFICATION ---"
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checkMinus "$1"
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bcolor="$1"
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;;
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-f) # format
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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 FORMAT SPECIFICATION ---"
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checkMinus "$1"
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format=`echo "$1" | tr "[:lower:]" "[:upper:]"`
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case "$format" in
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RG) ;;
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GB) ;;
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BR) ;;
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RGB) ;;
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*) errMsg "--- FORMAT=$format IS AN INVALID VALUE ---"
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esac
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;;
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-T) # trim
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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 TRIM SPECIFICATION ---"
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checkMinus "$1"
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trim=`echo "$1" | tr "[:upper:]" "[:lower:]"`
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case "$trim" in
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yes) ;;
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no) ;;
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*) errMsg "--- TRIM=$trim IS AN INVALID VALUE ---"
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esac
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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 infiles and outfile
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infile1="$1"
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infile2="$2"
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outfile="$3"
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fi
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# test that infile1 provided
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[ "$infile1" = "" ] && errMsg "--- NO INPUT FILE 1 SPECIFIED ---"
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# test that infile2 provided
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[ "$infile2" = "" ] && errMsg "--- NO INPUT FILE 2 SPECIFIED ---"
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# test that outfile provided
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[ "$outfile" = "" ] && errMsg "--- NO OUTPUT FILE SPECIFIED ---"
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dir="$tmpdir/POSITION.$$"
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mkdir "$dir" || echo "--- FAILED TO CREATE TEMPORARY FILE DIRECTORY ---"
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trap "rm -rf $dir; exit 0" 0
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trap "rm -rf $dir; exit 1" 1 2 3 15
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# read input images
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# test if infile exists, is readable and is not zero size
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convert -quiet "$infile1" +repage $dir/tmpI1.mpc ||
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echo "--- FILE $infile1 DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---"
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convert -quiet "$infile2" +repage $dir/tmpI2.mpc ||
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echo "--- FILE $infile2 DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---"
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# get image1 dimensions
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ww=`convert $dir/tmpI1.mpc -format "%w" info:`
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hh=`convert $dir/tmpI1.mpc -format "%h" info:`
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#echo "ww=$ww; hh=$hh;"
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# get page values for second image
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if [ "$method" = "cpoints" ]; then
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lx=`echo "$leftpt" | cut -d, -f1`
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ly=`echo "$leftpt" | cut -d, -f2`
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rx=`echo "$rightpt" | cut -d, -f1`
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ry=`echo "$rightpt" | cut -d, -f2`
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pagex=$((lx-rx))
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pagey=$((ly-ry))
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else # offsets
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xoff=`echo $offset | sed -n 's/^\([+-].*\)[+-].*$/\1/p'`
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yoff=`echo $offset | sed -n 's/^[+-].*\([+-].*\)$/\1/p'`
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if [ "$direction" = "horizontal" ]; then
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pagex=$((ww+xoff))
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pagey=$((yoff))
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else
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# vertical
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pagex=$((xoff))
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pagey=$((hh+yoff))
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fi
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fi
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#echo "ww=$ww; hh=$hh; xoff=$xoff; yoff=$yoff; lx=$lx; ly=$ly; rx=$rx; ry=$ry; pagex=$pagex; pagey=$pagey;"
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# set up for trim
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[ "$trim" = "yes" ] && trimming="-background $bcolor -define trim:percent-background=0% -trim +repage"
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# align the two images
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if [ "$format" = "RG" ]; then
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convert \
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\( $dir/tmpI1.mpc -colorspace gray -set page +0+0 -write mpr:img1 +delete \) \
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\( $dir/tmpI2.mpc -colorspace gray -set page +${pagex}+${pagey} -write mpr:img2 +delete \) \
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\( \( mpr:img2 -background black -colorize 100 \) \( mpr:img1 +level-colors "black,red" \) \
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-background "$bcolor" -layers merge +repage \) \
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\( \( mpr:img1 -background black -colorize 100 \) \( mpr:img2 +level-colors "black,green1" \) \
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-background "$bcolor" -layers merge +repage \) \
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-compose over -compose blend -composite $trimming \
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"$outfile"
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elif [ "$format" = "GB" ]; then
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convert \
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\( $dir/tmpI1.mpc -colorspace gray -set page +0+0 -write mpr:img1 +delete \) \
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\( $dir/tmpI2.mpc -colorspace gray -set page +${pagex}+${pagey} -write mpr:img2 +delete \) \
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\( \( mpr:img2 -background black -colorize 100 \) \( mpr:img1 +level-colors "black,green1" \) \
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-background "$bcolor" -layers merge +repage \) \
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\( \( mpr:img1 -background black -colorize 100 \) \( mpr:img2 +level-colors "black,blue" \) \
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-background "$bcolor" -layers merge +repage \) \
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-compose over -compose blend -composite $trimming \
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"$outfile"
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||
|
|
elif [ "$format" = "BR" ]; then
|
||
|
|
convert \
|
||
|
|
\( $dir/tmpI1.mpc -colorspace gray -set page +0+0 -write mpr:img1 +delete \) \
|
||
|
|
\( $dir/tmpI2.mpc -colorspace gray -set page +${pagex}+${pagey} -write mpr:img2 +delete \) \
|
||
|
|
\( \( mpr:img2 -background black -colorize 100 \) \( mpr:img1 +level-colors "black,blue" \) \
|
||
|
|
-background "$bcolor" -layers merge +repage \) \
|
||
|
|
\( \( mpr:img1 -background black -colorize 100 \) \( mpr:img2 +level-colors "black,red" \) \
|
||
|
|
-background "$bcolor" -layers merge +repage \) \
|
||
|
|
-compose over -compose blend -composite $trimming \
|
||
|
|
"$outfile"
|
||
|
|
|
||
|
|
else # RGB
|
||
|
|
convert \
|
||
|
|
\( $dir/tmpI1.mpc -set page +0+0 \) \
|
||
|
|
\( $dir/tmpI2.mpc -set page +${pagex}+${pagey} \) \
|
||
|
|
-background "$bcolor" -layers merge +repage $trimming \
|
||
|
|
"$outfile"
|
||
|
|
|
||
|
|
|
||
|
|
fi
|
||
|
|
|
||
|
|
exit 0
|