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#!/bin/bash
BASENAME=tmp
DIRECTORY=$1
BS=$(basename $DIRECTORY)
files=`ls -1 $DIRECTORY`
prev="null"
ITER=0
SEQUENCE=`seq 0.00 0.05 0.999`
mkdir tmp/
for file in $files
do
echo $file
if [ $ITER -eq 0 ]
then
prev=$file
ITER=$((ITER+1))
continue
fi
convert -verbose "$DIRECTORY/$prev" PNG24:${BASENAME}_normalized_0.png
convert -verbose "$DIRECTORY/$file" PNG24:${BASENAME}_normalized_1.png
./makeOptFlow.sh ${BASENAME}_normalized_%01d.png flow 0
for scale in $SEQUENCE; do
scale="${scale/,/.}"
echo $scale
th torch_warp.lua \
-flow_file flow/backward_1_0.flo \
-source_image ${BASENAME}_normalized_0.png \
-output_image warp_0.png \
-scale $scale
th torch_warp.lua \
-flow_file flow/forward_0_1.flo \
-source_image ${BASENAME}_normalized_1.png \
-output_image warp_1.png \
-scale $(bc <<< "1.0-$scale")
OUT=$(printf "tmp/frame_%05d.png" $ITER)
convert warp_0.png warp_1.png -compose blend -define compose:args=$(bc <<< "100*$scale/1") -composite $OUT
rm warp_0.png warp_1.png
prev=$file
ITER=$((ITER+1))
done
rm -rf flow/ ${BASENAME}_normalized*.png
# rm -rf tmp/
done
ffmpeg -i tmp/frame_%05d.png -vcodec libx264 -pix_fmt yuv420p -profile:v baseline -level 3 "blended_${BS}.mp4"
cd tmp/
mkdir 256
for i in *; do convert $i -resize '256x256!' 256/$i; done
cd ..
mv tmp blended_${BS}
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