# Last edited on 2013-01-10 11:09:28 by stolfilocal

Criando mascaras:

  for f in `ls */*.pgm | grep -v mask` ; do
    img="${f%%.pgm}"
    convert ${img}.pgm -threshold '99%' -morphology Erode Disk:5.3 -negate -blur 'x1.0' ${img}-mask.pgm 
    display -filter box -title '%f' -resize '400%' ${img}.pgm ${img}-mask.pgm 
  done

Colando gabaritos no fundo:

  seed=101
  for f in `ls */*.pgm | egrep -v -e '(mask|alpha|dirty)'` ; do
    img="${f%%.pgm}"
    convert ${img}.pgm ${img}-mask.pgm -alpha off -compose copy_opacity -composite PNG32:${img}-alpha.png
    pos=`gawk -v seed=${seed} 'BEGIN{ srand(seed); dx = int(64*rand()); dy = int(64*rand()); printf "%+03d%+03d", dx, dy;}'`
    echo "pos = ${pos}"
    convert  background.pgm ${img}-alpha.png -geometry "${pos}" -composite ${img}-dirty.pgm
    display -filter box -title '%f' -resize '400%' ${img}.pgm ${img}-mask.pgm ${img}-dirty.pgm  
    seed=$(( seed + 417 ))
  done
  
    convert ${img}.pgm ${img}-mask.pgm -alpha off -compose copy_opacity -composite PNG32:${img}-alpha.png



   convert  background.pgm ${img}-alpha.png -geometry '+5-15' -composite ${img}-dirty.pgm
  
  convert -background none  -fill white \
          -font Ravie  -pointsize 36   label:A   label_A_white.png