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Apr 23rd, 2017
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  1. image_initiale = open("joconde.pgm", "r")
  2. image_modifiee = open("joconde_rouge.pgm","w")
  3.  
  4. # Magic Number
  5. ligne = image_initiale.readline()
  6. image_modifiee.write(ligne)
  7.  
  8. # Commentaire
  9. ligne = image_initiale.readline()
  10. image_modifiee.write(ligne)
  11.  
  12. # Commentaire
  13. ligne = image_initiale.readline()
  14. image_modifiee.write(ligne)
  15.  
  16. # Lecture et modification des pixels
  17.  
  18. for pixel in range(0, 60000):
  19. pixels = image_initiale.readline().split()
  20. pixels[1] = '0' # vert
  21. pixels[2] = '0' # bleu
  22. image_modifiee.write(' '.join(pixels) + "\n")
  23.  
  24. ## On ferme les fichiers ouverts !
  25. image_initiale.close()
  26. image_modifiee.close()
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