# Uni-Tech Adelaide: My First Red-Eye Removal

QUESTION: “If 'coding' would be your superpower, what would you do?”

For a start, watch the great motivational videos What most schools don't teach and The hour of code!
All slides are available online as a PPTX and as a PDF.
The Jython Environment for Students is available online as well.
And if you are looking for all the pictures that we are using today: you can download them here.

## Slide 17 - Our first picture recipe

def decreaseRed(picture):
for p in getPixels(picture):
value=getRed(p)
setRed(p,value*0.5)

file="/Users/guzdial/mediasources/katie.jpg"
use the line
file=pickAFile()
and then find the file under
d:\JEC\JES_MediaSources
when you are in room EM106.

## Slide 43 - Working the pixels by number

def decreaseRed2(picture):
for x in range(0,getWidth(picture)):
for y in range(0,getHeight(picture)):
px = getPixel(picture,x,y)
value = getRed(px)
setRed(px,value*0.5)

## Slide 45 - Removing Red Eyes

def removeRedEye(pic,startX,startY,endX,endY,replacementcolor):
red = makeColor(255,0,0)
for x in range(startX,endX):
for y in range(startY,endY):
currentPixel = getPixel(pic,x,y)
if (distance(red,getColor(currentPixel)) < 165):
setColor(currentPixel,replacementcolor)