[init]

.gitignore

@@ -0,0 +1,4 @@
+images
+logs
+synthesis
+*swp

img_generator.sh

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+#!/bin/bash
+usage(){
+    cat << HEREDOC
+    $0 [-h] [MAXFILE] [TAG]
+    This script loads and merges images based on random words 
+    -h          this help
+    MAXFILE     Limit number of images to compose 
+    TAG         Don't pick tag randomly
+HEREDOC
+    exit 1
+}
+panic(){ echo $@; exit 2; }
+[[ $1 == "-h" ]] || [[ $1 == --help ]] && usage 
+
+cd $( dirname $0 )
+MAXFILE=${1:-20}
+TAG=${2}
+TMPFILE=$(mktemp)
+
+# Search images
+for i in {1..99}; do
+    RAND=$( echo | awk ' { srand(); print int(rand() * 234937 ) } ')
+    WORD=$(awk "NR==$RAND" /usr/share/dict/words); 
+    [ -n "$TAG" ] && WORD=$TAG
+    URL="https://api.flickr.com/services/feeds/photos_public.gne?tags=$WORD&tagmode=any"; 
+    IMGLIST=($(curl -s "$URL" | grep '"enclosure"'|  sed -r 's_^.*href="(.*jpg)".*$_\1_' | grep "^http"))
+    [ $i -eq 2 ] && [ -n "$TAG" ] && panic "Failed to load tag" ]
+    [ 2 -gt ${#IMGLIST[@]} ] && continue
+    break;
+done
+
+# Download images 
+mkdir -p images
+for i in $( seq 0 $(( ${#IMGLIST[@]} -1 )) ); do 
+    IMGURL="${IMGLIST[$i]}"
+    [[ ${IMGLIST[$i]} =~ ^http ]] || continue
+    wget -q "$IMGURL" -P images
+    [[ O -eq $? ]] && FILELIST+=(images/$(basename ${IMGLIST[$i]} ) ) 
+    [ $i -gt $(( $MAXFILE -2 )) ] && break
+done
+
+# Create synthetic image
+mkdir -p synthesis
+SYNTH_NAME="synthesis/$(date +%s)-$WORD.jpg"
+SRC=${FILELIST[0]}
+#copy the first image
+cp $SRC $SYNTH_NAME
+for i in $( seq 1 $(( ${#FILELIST[@]} -1 )) ); do
+    composite ${FILELIST[$i]} $SYNTH_NAME -gravity center -compose difference "$SYNTH_NAME"
+done 
+
+mkdir logs
+echo "File generated with word $WORD and ${#FILELIST[@]} images: file://$PWD/$SYNTH_NAME" | tee "logs/$(basename $SYNTH_NAME)"
+echo "${FILELIST[@]}" | tee -a "logs/$(basename $SYNTH_NAME)"
+