Where’s Waldo/Wally?

The Geek Solution (TM):

  • First, I’m filtering out all colours that aren’t red
  • Next, I’m calculating the correlation of this image with a simple black and white pattern to find the red and white transitions in the shirt.
  • I use Binarize to pick out the pixels in the image with a sufficiently high correlation and draw white circle around them to emphasize them using Dilation

How do I find Waldo with Mathematica? →