Welcome to CS1315. Click on the python to add comments. Looking for the book? They have it at the Engineer's Bookstore at 748 Marietta St NW. Here is there website: http://www.engrbookstore.com/ - Monica
	Hotspots: Slides and Code • TA Corner • Comments? • Announcements • FAQ • Static Webspace

purpleRinse.py

def classDemo(fileName):
  picture = makePicture(fileName)
  show(picture)
  manipulate(picture)
  repaint(picture)

def manipulate(image):
  for pix in getPixels(image):
    purpleRinse2(pix)

# Hand-coded version without the distance function, which was incorrect in first version of JES
# made available for download.
def purpleRinse1(pixel):
  hairRed = 161
  hairGreen = 137
  hairBlue = 125
  r = getRed(pixel)
  g = getGreen(pixel)
  b = getBlue(pixel)
  if (abs(r-hairRed) < 10 and abs(b-hairBlue) < 10 and abs(g-hairGreen) < 10):
    setRed(pixel, r*1.5)
    setBlue(pixel, b* 2)

# Better solution, using built-in distance function. This works with the latest version
# of JES available on the downloads page.
def purpleRinse2(pixel):
  hairColor = makeColor(161, 137, 125)
  pixelColor = getColor(pixel)
  if distance(hairColor, pixelColor) < 10:
    setRed(pixel, getRed(pixel) *1.5)
    setBlue(pixel, getBlue(pixel)* 2)

Link to this Page

• Spring 2007 materials last edited on 21 August 2007 at 10:44 pm by user-1121vkp.dsl.mindspring.com