Figure 6.

Comparison of coordinate storage methods. Performance of storing object coordinates as pointlists and quadtrees for three different object morphologies. Shown for each example are the raw image, binarised form of the object and quadtree representation. The two storage methods are evaluated on the time taken to create the coordinate store and the memory it occupies. Time taken is reported as the average of 30 measurements with standard deviation. For each sample, the most efficient memory storage method is highlighted in red. All three raw images have a resolution of 256 pixels × 256 pixels.