Solution and Tests to the Vanderbilt University Image #2 Problem.

Given a black and white image, represented as an array, image-blur runs a transformation on the image. Running the blur transformation causes any 1 in the image to cause the pixel to the left, right, above and below to become a 1. The image-blur method can handle single pixel transformations, multiple pixel transformations, and edge transformations.

image-blur accepts a nested array of 0's and 1's only. Other values can be passed in, but will not be blurred. The array must be rectangular (i.e. all nested arrays must have identical length). Any index with a value of 1 will be blurred.

image-blur uses rspec tests to make sure the algorithm functions correctly. You can customize these tests in the spec/image_spec.rb file if you choose.

One Pixel Transform

Multiple Pixel Transform

Edge Tranformation