#!/bin/bash # # Developed by Fred Weinhaus 6/3/2008 .......... revised 8/12/2015 # # ------------------------------------------------------------------------------ # # 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: fxtransitions [-e effect] [-f frames] [-d delay] [-p pause] [-b bgcolor] [-r] infile1 infile2 [outfile] # USAGE: fxtransitions [-h or -help] # # OPTIONS: # # -e effect transition effect type: blur, explode, implode, pixelize, # recursion, spin, spread, swirl, zoomin, zoomout; # default=blur # -f frames number of frames in animation; frames>1; default=10 # -d delay delay between frames; delay>0; default=20 # -p pause pause delay for two undistorted input images; # pause>0; default=50 # -b bgcolor background color for use only with effect=zoomout # -r reverse the animation sequence and append it to the end # # The two input files must be the same size. # # The output file must be of type that supports multi-frames, such as gif. # # If no output file is specified, the animation will be displayed automatically # but not saved to a file # ### # # NAME: FXTRANSITIONS # # PURPOSE: To create an animated transition between two images using a special effect distortion. # # DESCRIPTION: FXTRANSITIONS creates an animated transition between two images using a # special effect distortion. The special effects distortions include: blur, explode, # implode, pixelize, recursion, spin, spread, swirl, zoomin and zoomout. # # OPTIONS: # # -e effect ... EFFECT is the type of distortion to use as the means for creating # the animated transition between the two input images. The choices are: blur, explode, # implode, pixelize, recursion, spin, spread, swirl, zoomin and zoomout. The default=blur. # # -f frames ... FRAMES is the number of frames in the animation of each of the # two input images. Values are integers > 1. The default is 10. Thus the total # number of frames will be 2*frames. If the animation is reversed, then the # total number of frames will be 4*frames-2. # # -d delay ... DELAY between frames. Values are integers>0. The default=20 # # -p pause ... PAUSE is the delay to use for the first and last frame of the # animation, i.e. the delay for each of the input images. The default=50 # # -b bgcolor ... BGCOLOR is the background color to use for fill when the # effect is zoomout. Any valid IM color specification. The default=black. # # -r ... If supplied, then reverse the animation sequence, remove the first and # last frames of the reversed sequence and append these reversed frames to # the end of the animation. # # 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 effect="blur" frames=10 delay=20 pause=50 reverse="no" bgcolor="black" # 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 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 -h|-help) # help information echo "" usage2 exit 0 ;; -e) # get effect shift # to get the next parameter - effect # test if parameter starts with minus sign errorMsg="--- INVALID EFFECT SPECIFICATION ---" checkMinus "$1" effect="$1" case "$effect" in blur) ;; explode) ;; implode) ;; pixelize) ;; recursion) ;; spin) ;; spread) ;; swirl) ;; zoomin) ;; zoomout) ;; *) errMsg "--- INVALID EFFECT ---" ;; esac ;; -f) # get frames shift # to get the next parameter - frames # test if parameter starts with minus sign errorMsg="--- INVALID FRAMES SPECIFICATION ---" checkMinus "$1" frames=`expr "$1" : '\([0-9]*\)'` [ "$frames" = "" ] && errMsg "FRAMES=$frames MUST BE AN INTEGER" framestest=`echo "$frames <= 1" | bc` [ $framestest -eq 1 ] && errMsg "--- FRAMES=$frames MUST BE AN INTEGER GREATER THAN 1 ---" ;; -d) # get delay shift # to get the next parameter - delay # test if parameter starts with minus sign errorMsg="--- INVALID DELAY SPECIFICATION ---" checkMinus "$1" delay=`expr "$1" : '\([0-9]*\)'` [ "$delay" = "" ] && errMsg "DELAY=$delay MUST BE A NON-NEGATIVE INTEGER" ;; -p) # get pause shift # to get the next parameter - pause # test if parameter starts with minus sign errorMsg="--- INVALID PAUSE SPECIFICATION ---" checkMinus "$1" pause=`expr "$1" : '\([0-9]*\)'` [ "$pause" = "" ] && errMsg "PAUSE=$pause MUST BE A NON-NEGATIVE INTEGER" ;; -b) # get bgcolor shift # to get the next parameter - bgcolor # test if parameter starts with minus sign errorMsg="--- INVALID BGCOLOR SPECIFICATION ---" checkMinus "$1" bgcolor="$1" ;; -r) # set frame reversal append reverse="yes" ;; -) # 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 infile1="$1" infile2="$2" outfile="$3" fi # test that infile1 provided [ "$infile1" = "" ] && errMsg "NO INPUT FILE 1 SPECIFIED" # test that infile2 provided [ "$infile2" = "" ] && errMsg "NO INPUT FILE 2 SPECIFIED" # set temporary files tmpA="$dir/fxtransitions_1_$$.mpc" tmpB="$dir/fxtransitions_1_$$.cache" tmpC="$dir/fxtransitions_2_$$.mpc" tmpD="$dir/fxtransitions_2_$$.cache" tmp0="$dir/fxtransitions_0_$$.miff" tmp1="$dir/fxtransitions_1_$$.miff" trap "rm -f $tmpA $tmpB $tmpC $tmpD $tmp0 $tmp1;" 0 trap "rm -f $tmpA $tmpB $tmpC $tmpD $tmp0 $tmp1; exit 1" 1 2 3 15 trap "rm -f $tmpA $tmpB $tmpC $tmpD $tmp0 $tmp1; exit 1" ERR if convert -quiet "$infile1" +repage "$tmpA" then : ' Do Nothing ' else errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi if convert -quiet "$infile2" +repage "$tmpC" then : ' Do Nothing ' else errMsg "--- FILE $infile DOES NOT EXIST OR IS NOT AN ORDINARY FILE, NOT READABLE OR HAS ZERO SIZE ---" fi w1=`convert $tmpA -format "%w" info:` h1=`convert $tmpA -format "%h" info:` w2=`convert $tmpC -format "%w" info:` h2=`convert $tmpC -format "%h" info:` [ $w1 -ne $w2 -a $h1 -ne $h2 ] && errMsg "--- IMAGE SIZES DO NOT MATCH ---" 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` count=`expr $frames - 1` case "$effect" in blur) dim=`convert xc: -format "%[fx:min($w1,$h1)]" info:` # solve for x^(count)=1/dim factor=`convert xc: -format "%[fx:10^(log(1/$dim)/$count)]" info:` expression="100*$factor^\$k" func1="-resize" op="%" parm="" func2="-resize ${w1}x${h1}!" ;; explode) factor=`convert xc: -format "%[fx:100/$count]" info:` expression="-100*\(\(1000^\(\$k*$factor/100\)-1\)/999\)" func1="-implode" op="" parm="" func2="" ;; implode) factor=`convert xc: -format "%[fx:2/$count]" info:` expression="2*\(\(1000^\(\$k*$factor/2\)-1\)/999\)" func1="-implode" op="" parm="" func2="" ;; pixelize) dim=`convert xc: -format "%[fx:min($w1,$h1)]" info:` # solve for x^(count)=1/dim factor=`convert xc: -format "%[fx:10^(log(1/$dim)/$count)]" info:` expression="100*$factor^\$k" func1="-filter box -resize" op="%" parm="" func2="-resize ${w1}x${h1}!" ;; recursion) dim=`convert xc: -format "%[fx:min($w1,$h1)]" info:` # solve for x^(count)=1/dim factor=`convert xc: -format "%[fx:10^(log(1/$dim)/$count)]" info:` expression="100*$factor^\$k" func1="-resize" op="%" parm="" ;; spin) factor=`convert xc: -format "%[fx:359.9/$count]" info:` expression="359.9*\(\(1000^\(\$k*$factor/359.9\)-1\)/999\)\)" if [ "$im_version" -ge "07000000" ]; then func1="-rotational-blur" else func1="-radial-blur" fi op="" parm="" func2="" ;; spread) dim=`convert xc: -format "%[fx:min($w1,$h1)]" info:` # solve for x^(count)=1/dim factor=`convert xc: -format "%[fx:1/$count)]" info:` expression="100*\(10^\($factor*\$k\)-1\)/9" func1="-interpolate bilinear -spread" op="%" parm="" func2="" ;; swirl) factor=`convert xc: -format "%[fx:360/$count]" info:` expression="3*360*\(\(1000^\(\$k*$factor/360\)-1\)/999\)" func1="-swirl" op="" parm="" func2="" ;; zoomin) factor=`convert xc: -format "%[fx:1/$count]" info:` f1=`convert xc: -format "%[fx:20*(20^($factor)-1)/19]" info:` min=`convert xc: -format "%[fx:$f1<1?1-0.9*$f1:0]" info:` expression="$min+20*\(20^\(\$k*$factor\)-1\)/19\)" func1="-distort SRT" op="" parm="0" func2="" ;; zoomout) dim=`convert xc: -format "%[fx:min($w1,$h1)]" info:` # solve for x^(count)=1/dim factor=`convert xc: -format "%[fx:10^(log(1/$dim)/$count)]" info:` expression="100*$factor^\$k" func1="-resize" op="%" parm="" func2="-background $bgcolor -gravity center -extent ${w1}x${h1}" ;; esac #function to make frame transitions transitionFrames() { echo "" echo "Generating $frames Frames For Image 1:" echo "" i=0 echo "0" convert $tmpA $tmp0 while [ $i -lt $count ] do k=`expr $i + 1` echo $k eval ee=$expression ff=`convert xc: -format "%[fx:$ee]" info:` # echo "k=$k; ff=$ff func1=$func1;" convert $tmpA $func1 "$ff${op} $parm" $func2 miff:- |\ convert -delay $delay $tmp0 - $tmp0 i=`expr $i + 1` done echo "" echo "Generating $frames Frames For Image 2:" echo "" i=1 k=$count while [ $k -gt 0 ] do j=`expr $i - 1` echo $j eval ee=$expression ff=`convert xc: -format "%[fx:$ee]" info:` # echo "j=$j; k=$k; ff=$ff; func1=$func1;" convert $tmpC $func1 "$ff${op} $parm" $func2 miff:- |\ convert -delay $delay $tmp0 - $tmp0 i=`expr $i + 1` k=`expr $k - 1` done echo "$count" convert $tmpC miff:- |\ convert -delay $delay $tmp0 - $tmp0 } # function to change the delay on two specified frames changeDelay() { if [ $pause -ne $delay ] then fa=$1 fb=$2 fam=`convert xc: -format "%[fx:$fa-1]" info:` fbm=`convert xc: -format "%[fx:$fb-1]" info:` convert $tmp0 -coalesce \ \( -clone 0 -set delay $pause \) -swap ${fa},${fam} +delete \ \( +clone -set delay $pause \) -swap ${fb},${fbm} +delete \ -quiet -layers Optimize $tmp0 fi } # make transitions for image 1 and image 2 transitionFrames # change delay first and last frames changeDelay 0 -1 if [ "$reverse" = "yes" -a "$effect" = "recursion" ] then echo "" echo "Reversing Animation By Swapping Images And Regenerating Sequence" convert $tmp0 $tmp1 convert $infile1 $tmpC convert $infile2 $tmpA transitionFrames echo "" echo "Merging Both Sequences" convert \( $tmp1 -coalesce \) \( $tmp0 -coalesce -delete 0,-1 \) \ -quiet -layers Optimize $tmp0 elif [ "$reverse" = "yes" -a "$effect" != "recursion" ] then echo "" echo "Reversing Animation - Please Wait" convert $tmp0 -coalesce \( -clone -2-1 \) \ -quiet -layers Optimize $tmp0 fi if [ "$outfile" != "" ] then convert $tmp0 -loop 0 "$outfile" else animate $tmp0 fi exit 0