Big blocks of colour produce tall stacks of 1x10 bricks, which look like they could fall over. Shouldn't the algorithm overlap these bricks where possible? Ed

Big blocks of colour produce tall stacks of 1x10 bricks, which look like they could fall over. Shouldn't the algorithm overlap these bricks where possible? Edit: Presumably the algorithm fills a run of pixels by working from left to right, repeatedly fitting the largest brick it can, then filling in the end with a small brick. Picking different lengths for the bricks within a run will produce the same image but with different overlaps. One technique would be to try every combination of lengths that fit into a run of pixels and maximise the overlaps between these bricks and the rows above and below.