image #2092 original image ground truth-based border image Mumford & Shah (linear color space) visual inspection (λ=2048) best rand index  (λ=2048) best BGM  (λ=65536) rand index=0.2453 / BGM 0.5729 rand index=0.2453 BGM=0.1604 Mumford & Shah (adaptive color space) visual inspection (λ=128) best rand index  (λ=128) best BGM  (λ=512) rand index=0.0829 / BGM 0.0798 rand index=0.0829 BGM=0.0074 Tensor properties and seeds used Graphs of similarity