withoutBG Open-Weight Model vs silueta

37 examples, 37 with ground truth. Lower is better. Use the view controls on each row to switch between transparency, chroma key, and alpha matte on all outputs.

MetricwithoutBG Open-Weight Modelsilueta
MGE (Edge Quality)0.070630.09658
MAE (Overall Accuracy)0.064320.09873
Connectivity0.064060.10010
Original photo: autumn bouquet vase
Ground Truth alpha matte: autumn bouquet vase
Alpha matte
withoutBG Open-Weight Model alpha matte: autumn bouquet vase
Alpha matte
silueta alpha matte: autumn bouquet vase
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.11187
MAE
0.02393
Conn.
0.02366
silueta
MGE
0.20461
MAE
0.10838
Conn.
0.10939
Original photo: balcony flower planter bokeh
Ground Truth alpha matte: balcony flower planter bokeh
Alpha matte
withoutBG Open-Weight Model alpha matte: balcony flower planter bokeh
Alpha matte
silueta alpha matte: balcony flower planter bokeh
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.07491
MAE
0.20595
Conn.
0.20605
silueta
MGE
0.06955
MAE
0.22706
Conn.
0.22667
Original photo: balcony plant bokeh
Ground Truth alpha matte: balcony plant bokeh
Alpha matte
withoutBG Open-Weight Model alpha matte: balcony plant bokeh
Alpha matte
silueta alpha matte: balcony plant bokeh
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.07847
MAE
0.01629
Conn.
0.01623
silueta
MGE
0.10241
MAE
0.04156
Conn.
0.04390
Original photo: bearded man portrait
Ground Truth alpha matte: bearded man portrait
Alpha matte
withoutBG Open-Weight Model alpha matte: bearded man portrait
Alpha matte
silueta alpha matte: bearded man portrait
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.01863
MAE
0.00476
Conn.
0.00413
silueta
MGE
0.03713
MAE
0.01834
Conn.
0.01711
Original photo: bike handlebar near beach
Ground Truth alpha matte: bike handlebar near beach
Alpha matte
withoutBG Open-Weight Model alpha matte: bike handlebar near beach
Alpha matte
silueta alpha matte: bike handlebar near beach
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.04704
MAE
0.00841
Conn.
0.00826
silueta
MGE
0.08103
MAE
0.02102
Conn.
0.02144
Original photo: blowing dandelion seeds
Ground Truth alpha matte: blowing dandelion seeds
Alpha matte
withoutBG Open-Weight Model alpha matte: blowing dandelion seeds
Alpha matte
silueta alpha matte: blowing dandelion seeds
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.04385
MAE
0.01141
Conn.
0.01000
silueta
MGE
0.07385
MAE
0.04322
Conn.
0.04224
Original photo: campfire flames night
Ground Truth alpha matte: campfire flames night
Alpha matte
withoutBG Open-Weight Model alpha matte: campfire flames night
Alpha matte
silueta alpha matte: campfire flames night
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.03629
MAE
0.01250
Conn.
0.01173
silueta
MGE
0.04267
MAE
0.02599
Conn.
0.02520
Original photo: cargo ebike park tracks
Ground Truth alpha matte: cargo ebike park tracks
Alpha matte
withoutBG Open-Weight Model alpha matte: cargo ebike park tracks
Alpha matte
silueta alpha matte: cargo ebike park tracks
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.12069
MAE
0.01999
Conn.
0.01970
silueta
MGE
0.18705
MAE
0.07174
Conn.
0.07157
Original photo: compound leaf raindrops
Ground Truth alpha matte: compound leaf raindrops
Alpha matte
withoutBG Open-Weight Model alpha matte: compound leaf raindrops
Alpha matte
silueta alpha matte: compound leaf raindrops
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.04500
MAE
0.00749
Conn.
0.00713
silueta
MGE
0.09757
MAE
0.13177
Conn.
0.13496
Original photo: confetti sunset portrait
Ground Truth alpha matte: confetti sunset portrait
Alpha matte
withoutBG Open-Weight Model alpha matte: confetti sunset portrait
Alpha matte
silueta alpha matte: confetti sunset portrait
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.02821
MAE
0.00834
Conn.
0.00806
silueta
MGE
0.04531
MAE
0.02586
Conn.
0.02470
Original photo: cyclist motion blur field
Ground Truth alpha matte: cyclist motion blur field
Alpha matte
withoutBG Open-Weight Model alpha matte: cyclist motion blur field
Alpha matte
silueta alpha matte: cyclist motion blur field
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.06872
MAE
0.01673
Conn.
0.01649
silueta
MGE
0.08924
MAE
0.06126
Conn.
0.06125
Original photo: dried flowers clay vase
Ground Truth alpha matte: dried flowers clay vase
Alpha matte
withoutBG Open-Weight Model alpha matte: dried flowers clay vase
Alpha matte
silueta alpha matte: dried flowers clay vase
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.06195
MAE
0.01177
Conn.
0.01189
silueta
MGE
0.09536
MAE
0.02641
Conn.
0.02554
Original photo: elderly man running blur
Ground Truth alpha matte: elderly man running blur
Alpha matte
withoutBG Open-Weight Model alpha matte: elderly man running blur
Alpha matte
silueta alpha matte: elderly man running blur
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.02073
MAE
0.00482
Conn.
0.00464
silueta
MGE
0.02791
MAE
0.00746
Conn.
0.00641
Original photo: grass seed stem bokeh
Ground Truth alpha matte: grass seed stem bokeh
Alpha matte
withoutBG Open-Weight Model alpha matte: grass seed stem bokeh
Alpha matte
silueta alpha matte: grass seed stem bokeh
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.06311
MAE
0.01859
Conn.
0.01844
silueta
MGE
0.07588
MAE
0.03360
Conn.
0.03343
Original photo: hanging plant window
Ground Truth alpha matte: hanging plant window
Alpha matte
withoutBG Open-Weight Model alpha matte: hanging plant window
Alpha matte
silueta alpha matte: hanging plant window
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.11979
MAE
0.02627
Conn.
0.02612
silueta
MGE
0.20582
MAE
0.11628
Conn.
0.12355
Original photo: messy bun cityscape
Ground Truth alpha matte: messy bun cityscape
Alpha matte
withoutBG Open-Weight Model alpha matte: messy bun cityscape
Alpha matte
silueta alpha matte: messy bun cityscape
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.02311
MAE
0.00796
Conn.
0.00769
silueta
MGE
0.03781
MAE
0.02171
Conn.
0.02130
Original photo: messy hair bearded portrait
Ground Truth alpha matte: messy hair bearded portrait
Alpha matte
withoutBG Open-Weight Model alpha matte: messy hair bearded portrait
Alpha matte
silueta alpha matte: messy hair bearded portrait
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.01507
MAE
0.00650
Conn.
0.00573
silueta
MGE
0.02879
MAE
0.02025
Conn.
0.01777
Original photo: orange berries branch
Ground Truth alpha matte: orange berries branch
Alpha matte
withoutBG Open-Weight Model alpha matte: orange berries branch
Alpha matte
silueta alpha matte: orange berries branch
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.09111
MAE
0.01771
Conn.
0.01754
silueta
MGE
0.17120
MAE
0.30864
Conn.
0.30822
Original photo: red flower balcony bokeh
Ground Truth alpha matte: red flower balcony bokeh
Alpha matte
withoutBG Open-Weight Model alpha matte: red flower balcony bokeh
Alpha matte
silueta alpha matte: red flower balcony bokeh
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.05274
MAE
0.02840
Conn.
0.02826
silueta
MGE
0.10438
MAE
0.09374
Conn.
0.09394
Original photo: rocky coast bush foreground
Ground Truth alpha matte: rocky coast bush foreground
Alpha matte
withoutBG Open-Weight Model alpha matte: rocky coast bush foreground
Alpha matte
silueta alpha matte: rocky coast bush foreground
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.37456
MAE
0.49888
Conn.
0.49455
silueta
MGE
0.36901
MAE
0.49621
Conn.
0.49344
Original photo: small fishing boat bw
Ground Truth alpha matte: small fishing boat bw
Alpha matte
withoutBG Open-Weight Model alpha matte: small fishing boat bw
Alpha matte
silueta alpha matte: small fishing boat bw
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.05988
MAE
0.01390
Conn.
0.01386
silueta
MGE
0.08762
MAE
0.03829
Conn.
0.03714
Original photo: smiling man seaside sunset
Ground Truth alpha matte: smiling man seaside sunset
Alpha matte
withoutBG Open-Weight Model alpha matte: smiling man seaside sunset
Alpha matte
silueta alpha matte: smiling man seaside sunset
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.01330
MAE
0.00272
Conn.
0.00254
silueta
MGE
0.02454
MAE
0.01611
Conn.
0.01491
Original photo: smiling woman seaside
Ground Truth alpha matte: smiling woman seaside
Alpha matte
withoutBG Open-Weight Model alpha matte: smiling woman seaside
Alpha matte
silueta alpha matte: smiling woman seaside
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.02282
MAE
0.00565
Conn.
0.00489
silueta
MGE
0.03933
MAE
0.01531
Conn.
0.01327
Original photo: spoked bike wheel
Ground Truth alpha matte: spoked bike wheel
Alpha matte
withoutBG Open-Weight Model alpha matte: spoked bike wheel
Alpha matte
silueta alpha matte: spoked bike wheel
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.07366
MAE
0.01213
Conn.
0.01216
silueta
MGE
0.12746
MAE
0.14079
Conn.
0.14048
Original photo: sprinter motion blur
Ground Truth alpha matte: sprinter motion blur
Alpha matte
withoutBG Open-Weight Model alpha matte: sprinter motion blur
Alpha matte
silueta alpha matte: sprinter motion blur
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.03789
MAE
0.02922
Conn.
0.03011
silueta
MGE
0.04980
MAE
0.05419
Conn.
0.05514
Original photo: street dancer studio pose
Ground Truth alpha matte: street dancer studio pose
Alpha matte
withoutBG Open-Weight Model alpha matte: street dancer studio pose
Alpha matte
silueta alpha matte: street dancer studio pose
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.02475
MAE
0.00395
Conn.
0.00373
silueta
MGE
0.04037
MAE
0.00904
Conn.
0.00768
Original photo: street portrait man
Ground Truth alpha matte: street portrait man
Alpha matte
withoutBG Open-Weight Model alpha matte: street portrait man
Alpha matte
silueta alpha matte: street portrait man
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.01271
MAE
0.00301
Conn.
0.00277
silueta
MGE
0.02592
MAE
0.00945
Conn.
0.00855
Original photo: sunset field portrait
Ground Truth alpha matte: sunset field portrait
Alpha matte
withoutBG Open-Weight Model alpha matte: sunset field portrait
Alpha matte
silueta alpha matte: sunset field portrait
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.02503
MAE
0.00752
Conn.
0.00688
silueta
MGE
0.03985
MAE
0.02473
Conn.
0.02370
Original photo: tabby cat portrait
Ground Truth alpha matte: tabby cat portrait
Alpha matte
withoutBG Open-Weight Model alpha matte: tabby cat portrait
Alpha matte
silueta alpha matte: tabby cat portrait
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.03017
MAE
0.00736
Conn.
0.00695
silueta
MGE
0.05423
MAE
0.03155
Conn.
0.02870
Original photo: terrier dog mugshot
Ground Truth alpha matte: terrier dog mugshot
Alpha matte
withoutBG Open-Weight Model alpha matte: terrier dog mugshot
Alpha matte
silueta alpha matte: terrier dog mugshot
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.04226
MAE
0.01824
Conn.
0.01716
silueta
MGE
0.10126
MAE
0.13548
Conn.
0.14009
Original photo: trigonometry notes whiteboard
Ground Truth alpha matte: trigonometry notes whiteboard
Alpha matte
withoutBG Open-Weight Model alpha matte: trigonometry notes whiteboard
Alpha matte
silueta alpha matte: trigonometry notes whiteboard
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.28577
MAE
0.93281
Conn.
0.93738
silueta
MGE
0.17206
MAE
0.45597
Conn.
0.51126
Original photo: two bikes field
Ground Truth alpha matte: two bikes field
Alpha matte
withoutBG Open-Weight Model alpha matte: two bikes field
Alpha matte
silueta alpha matte: two bikes field
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.11198
MAE
0.02944
Conn.
0.02949
silueta
MGE
0.14155
MAE
0.05810
Conn.
0.05805
Original photo: two gravel bikes park
Ground Truth alpha matte: two gravel bikes park
Alpha matte
withoutBG Open-Weight Model alpha matte: two gravel bikes park
Alpha matte
silueta alpha matte: two gravel bikes park
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.17475
MAE
0.02962
Conn.
0.02905
silueta
MGE
0.24890
MAE
0.11734
Conn.
0.11697
Original photo: white chess pieces tournament
Ground Truth alpha matte: white chess pieces tournament
Alpha matte
withoutBG Open-Weight Model alpha matte: white chess pieces tournament
Alpha matte
silueta alpha matte: white chess pieces tournament
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.11440
MAE
0.29795
Conn.
0.29837
silueta
MGE
0.10403
MAE
0.28528
Conn.
0.29073
Original photo: windblown curly hair backpack
Ground Truth alpha matte: windblown curly hair backpack
Alpha matte
withoutBG Open-Weight Model alpha matte: windblown curly hair backpack
Alpha matte
silueta alpha matte: windblown curly hair backpack
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.03113
MAE
0.00814
Conn.
0.00763
silueta
MGE
0.05819
MAE
0.07603
Conn.
0.07324
Original photo: windblown curly portrait
Ground Truth alpha matte: windblown curly portrait
Alpha matte
withoutBG Open-Weight Model alpha matte: windblown curly portrait
Alpha matte
silueta alpha matte: windblown curly portrait
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.03992
MAE
0.01483
Conn.
0.01451
silueta
MGE
0.07272
MAE
0.24529
Conn.
0.24576
Original photo: woman street portrait glasses
Ground Truth alpha matte: woman street portrait glasses
Alpha matte
withoutBG Open-Weight Model alpha matte: woman street portrait glasses
Alpha matte
silueta alpha matte: woman street portrait glasses
Alpha matte
Original
Ground Truth
withoutBG Open-Weight Model
MGE
0.01719
MAE
0.00674
Conn.
0.00642
silueta
MGE
0.03889
MAE
0.03948
Conn.
0.03605

Methodology

  • Alpha mattes are grayscale masks encoding per-pixel foreground probability. They capture fine edge detail (hair, fur, semi-transparent regions) that binary masks discard.
  • Metrics are computed by comparing predicted mattes against a ground-truth reference: MGE measures edge sharpness, MAE measures pixel-level accuracy, and Connectivity penalises fragmented foreground regions. All three are lower-is-better.
  • Scores are shown as ? when no ground-truth matte is available for that image. See the alpha matting evaluation benchmark for details on the evaluation methodology.