Alpha Matting Evaluation Website
www.alphamatting.com

Test Dataset (Hidden ground-truth alpha)


Highly Transparent
Strongly Transparent
Medium Transparent
Little Transparent

Net*

Plastic bag*

Doll*

Troll**

Donkey**

Elephant**

Pineapple**

Plant*
*Objects photographed in front of a natural 3D scene.
**Objects photographed in front of a monitor showing natural images.

Download: Low resolution High resolution
Input images   input_lowres.zip input_highres.zip
User input (trimaps) trimap_lowres.zip trimap_highres.zip

 

Training Dataset (With public availaible ground-truth alpha)


Move the mouse over the images to see the corresponding ground truth alpha.

GT01**

GT02**

GT03**

GT04**

GT05**

GT06**

GT07**

GT08**

GT09**

GT10**

GT11**

GT12**

GT13**

GT14**

GT15**

GT16**

GT17**

GT18**

GT19**

GT20**

GT21**

GT22**

GT23**

GT24*

GT25*

GT26*

GT27*
*Objects photographed in front of a natural 3D scene.
**Objects photographed in front of a monitor showing natural images.

Download: Low resolution High resolution
Input images   input_training_lowres.zip input_training_highres.zip
User input (trimaps) trimap_training_lowres.zip trimap_training_highres.zip
Ground truth alpha gt_training_lowres.zip gt_training_highres.zip

New:
We now also provide the ground foreground colors for the images in the training dataset for those who need them. Please note that the foreground colors are provided as 16bit linear RGB files (i.e. no gamma correction or white point has been applied to the images). Therefore, the foreground colors do not match the colors of the already gamma corrected training images that you can download above. Thus we also provide the corresponding 16bit linear RGB input images. Please also note that due to noise, the computed foreground color does not exactly match the color of the corresponding input image, even in regions where the alpha matte is 1 (i.e. where the foreground object is opaque).

Download the 16bit linear RGB fgd/input images here (be aware that the filesize is approximately 2GB!):

input_with_gt_fgd.zip