Final exercise: Parallel photo mosaics

How about we somehow get a big collection of images and people have to create a mosaic of a different photo out of this collection of images? Random example.

I haven't really ever looked at how this stuff is implemented but I guess you have to subsample the original image and then find an image from the collection with an average value closest to the pixels of this subsampled image.

I feel like the mandelbrot thing involves a lot of math that can be a bit daunting. Personally I've never even had to work with complex numbers for example. The computations on the images seem a little simpler to me (calculating the mean and maybe a little interpolation).

I don't know exactly what to ask of the participants regarding finding the nearest neighbor.

Here is a nice non-parallel version: https://github.com/Datadolittle/Photo_Mosaic

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