Total Variation and Hypothesis Testing for Segmentation Image Total Variation Denoising Gradient Watershed Region Merging and Splitting REGION MERGING Calculate “distance” between each pair of neighboring regions Merge the pair of regions that are the “closest” Region Splitting for each region cluster into k=2 regions if p-value < threshold merge smallest region with closest neighbor split current region Dennis Sun and Matthew Ho 1

Total Variation and Hypothesis Testing for Segmentation Region Merging in Action Dennis Sun and Matthew Ho 2