image #113016 original image ground truth-based border image Mumford & Shah (linear color space) visual inspection (λ=8192) best rand index  (λ=16384) best BGM  (λ=16384) rand index=0.2524 / BGM 0.4168 rand index=0.1883 BGM=0.2341 Mumford & Shah (adaptive color space) visual inspection (λ=256) best rand index  (λ=256) best BGM  (λ=512) rand index=0.1638 / BGM 0.1282 rand index=0.1638 BGM=0.1252 Tensor properties and seeds used Graphs of similarity