Codebrawl #2

output.png

solution.rb

require 'chunky_png'

image = ChunkyPNG::Image.from_file('input.png')

# Not exactly elegant, but it gets the job done

sample_y = 0

while sample_y < image.height do
  sample_x = 0
  while sample_x < image.width do
    sample_color = image.get_pixel(sample_x + 4, sample_y + 4)

    (sample_x).upto(sample_x + 9) do |x|
      (sample_y).upto(sample_y + 9) do |y|
        image.set_pixel_if_within_bounds(x, y, sample_color)
      end
    end
    sample_x += 10
  end
  sample_y += 10
end

image.save('output.png')