Fabric Appearance Challenge

Organized by cgbonn - Current server time: Jan. 18, 2021, 7:43 a.m. UTC


May 15, 2020, midnight UTC


Competition Ends

Welcome to the Fabric Appearance Challenge!

In this competition, your task is to develop models that allow recreation of reflectance measurements. For this task, partial reflectance measurements are provided as a dataset of images, along with calibration data that is necessary to evaluate analytical reflectance models. The goal is, given the known reflectance and calibration data, to recreate unseen reflectance given only its corresponding calibration data. The model outputs are submitted as data files and are automatically rated and ranked according to several metrics.

Please see the provided starting kit for an example evaluation script under "Participate" -> "Files".

Evaluation Criteria

The model outputs need to be uploaded in the same format as the reflectance images in the dataset download, i.e. in the OpenEXR file format with the same naming scheme. They are then compared to the hold-out set of reflectance images unknown to challenge participants. The evaluation makes use of multiple common image metrics like RMSE, MAE, SSIM, as well as metrics like HDR-VDP that are tailored to provide difference ratings on high dynamic range images that resemble judgements by a human observer. Metric scores are averaged over all pixels and all images.

Terms and Conditions

  • You agree to us storing your submission results for evaluation purposes.
  • You agree not to distribute the APPBENCH dataset without prior written permission.


Start: May 15, 2020, midnight

Competition Ends


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# Username Score
1 cgbonn 0.02738