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Fall 2007 Test 1 Review: Generalized image filter

Post questions here.
I thought I would have to use "if" loops, but I ended up not using them.

def changeRGB(fn,redValue,greenValue,blueValue):
  pic = makePicture(fn)
  for p in getPixels(pic):
    setRed(p,getRed(p)*(1+redValue))
    setGreen(p,getGreen(p)*(1+greenValue))
    setBlue(p,getBlue(p)*(1+blueValue))
  show(pic)

Alex Young
why is there no fn=pickAFile()?
That code is wrong. We told you to pass in a picture, not a file. That is also why there is no "pickAFile()". Thanks! Brittany Duncan
do we have to make picture?
If the first argument is a picture, as specified in the question, you don't need to make one. Colin Potts
I see I did not read the directions. :( Alex Young

def changeRGB(pic,redValue,greenValue,blueValue):
  for p in getPixels(pic):
    setRed(p,getRed(p)*(1+redValue))
    setGreen(p,getGreen(p)*(1+greenValue))
    setBlue(p,getBlue(p)*(1+blueValue))
  show(pic)



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