Get some green posterboard and take a picture of a friend in front of it. Now use chromakey to put her or him in the jungle. Or better yet, in Paris.
An inclusion of the image is all that’s required for this question
```
def chromakeyGreen(source ,bg):
for px in getPixels(source):
x = getX(px)
y = getY(px)
if (getRed(px) + getBlue(px) < getGreen(px)):
bgpx = getPixel(bg,x,y)
bgcol = getColor(bgpx)
setColor(px,bgcol)
```
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