Next Semester

1
Session 37

• Next Semester
• Shrinking the size of our photo/text files

2
Next Semester

• Assuming that you have a C or better in this
  course you should sign up for
• 810052 (with me, sorry) However, you will
  need to get a pre-req exception
• and if you havent had it yet, 810080
• I will be using the same book that Dr. Fienup is
  using for 810063 this semester so if you can
  work something out

3
writePictureToTextFile()

• def writePictureToTextFile(picture,file)
• file open(file,"wt")
• file.write( str(getWidth(picture)) ",)
• file.write( str(getHeight(picture)) "\n" )
• for p in getPixels(picture)
• file.write( str(p.getRed()) "," )
• file.write( str(p.getGreen()) "," )
• file.write( str(p.getBlue()) "\n" )
• file.close()

4
writePictureDiffsToTextFile()

• def writePictureDiffsToTextFile(picture,file)
• file open(file,"wt")
• file.write( str(getWidth(picture)) ","
  str(getHeight(picture)) "\n" )
• pgetPixel(picture,1,1)
• r1p.getRed()
• g1p.getGreen()
• b1p.getBlue()
• count0
• for p in getPixels(picture)
• r2 p.getRed()
• g2 p.getGreen()
• b2 p.getBlue()
• if (r1r2 and g1g2 and b1b2)
• countcount1
• else
• write(r1,g1,b1,count)
• count1
• r1r2
• g1g2