Welcome to the First IFS-TC Image Forensics Challenge

The First Image Forensics Challenge is an international competition organized by the IEEE Information Forensics and Security Technical Committee (IFS-TC) that will take place from June 2013. The project aims to provide students and researchers the opportunity to showcase and pit their skills in a rigorous competition in the application of digital image processing.

To contact us please send an email to ifc@ic.unicamp.br.

Live Ranking

Click here to see the top teams so far on Phase #1.

Click here to see the top teams so far on Phase #2.

Challenge Ranking (Final)

Click here to see the top teams in the Challenge on Phase #1.

Click here to see the top teams in the Challenge on Phase #2.

Latest News

The submission system is back

Our submission system is now available for new submissions. It will continue running as it did in the challenge to allow any interested group to evaluate their algorithms in our dataset.

We now have two rankings:

  • Live Ranking: This ranking shows the top teams so far, counting from today.
  • Challenge Ranking: This ranking shows the top teams during the challenge.

Best Forgery Creators

Below are the collaborators who create the most difficult fake images both on Phase 1 (forgery detection) and Phase 2 (forgery localization).

To choose the best forgers of Phase 1, we selected the 25 fake images that were less detected during the challenge and considered as winner the one who created more images among those 25.

Best Forgers of Phase 1

  1. Ewerton Silva (Winner)
  2. Tiago Carvalho (Runner up)

On Phase 2, the best forger was the one who created images in which the challengers managed to score less (in average, based on the F-measure). See the rules section for more information about how the score is computed.

Best Forgers of Phase 2

  1. Anselmo Ferreira (Winner)
  2. Tiago Carvalho (Runner up)

Congratulations!

Winners of Phase 2

Below are the winners of Phase 2. The winners were chosen by analyzing the papers and the last submission.

  1. Team: Grip. Leader: Luisa Verdoliva. (Award: US$ 1750,00)
  2. Team: havefun. Leader: Guanshuo Xu. (Award: US$ 1250,00)

The awards will be given in the form of travel grants to WIFS 2013 in Guangzhou, China.

Congratulations to all the winners!

End of Phase 2 and the winners

The ranking of Phase 2 will be unavailable until we decide the winners. We will be checking the last submitted results and the paper from every challenger to select the winners, which will be announced until Oct 15. The submissions will be validated through the review of the submitted papers.

Please, note that all the challengers are still able to update the papers of Phase 2 until Oct 10.

Winners of Phase 1

Below are the winners of Phases 1A and 1B. The winners were chosen by analyzing the papers and the last submission.

Awardees of Phase 1A:

  1. Team: Grip. Leader: Luisa Verdoliva. (Award: US$ 1500,00)
  2. Team: havefun. Leader: Guanshuo Xu. (Award: US$ 1000,00)

Awardees of Phase 1B:

  1. Team: de.tector. Leader: Matthias Kirchner. (Award: US$ 1500,00)

Note that the awards will be given in the form of travel grants to WIFS 2013 in Guangzhou, China.

Congratulations to all the winners!

End of Phase 1 and the winners

The ranking of Phase 1 will be unavailable until we decide the winners. We will be checking the last submitted results and the paper from every challenger to select the winners, which will be announced on Oct 05. The submissions will be validated through the review of the submitted papers.

Please, note that all the challengers are still able to update their papers until Sep 30.

Deadline for submission of papers

We are extending the submissions of papers on Phases 1 and 2 to Sep 30 and Oct 10, respectivelly. Note that this deadline does not apply to the submission of results, just for the papers.

The deadline of both Phases have been extended for one week

In order to minimize the impacts caused by the unexpected fixes on the scores of Phase 1, we're extending both the Phases 1 and 2 for one week.

Thus, the deadlines of Phases 1 and 2 are now Sep 22 and Oct 07, respectively.

These new deadlines also apply for the submission of papers in both phases.

The scores of Phase 1 have been fixed

As a follow up to our recent updates in our scoring system, and as a means to minimize the impact that these fixes caused, we updated every score of Phase 1 in the Submission System.

You can view your dashboard in the Submission System to check the real score that every submission had. We encourage you to do so, as some scores have changed abruptly.

Problem on the scoring system of Phase 1

Yesterday, we found a problem on our scoring system of Phase 1, which caused the score of some users to be calculated incorrectly. The problem is already fixed and all new submissions from now on will have their scores computed correctly. We also updated the score of the last submission of every user who had made submissions on Phase 1.

You can already check your fixed score on the submission system.

Please, feel free to contact us if you have any questions.

Phase 1 deadline has been extended to Sep 15

The deadline for submissions on phase 1 has been extended to Sep 15. This applies to both ground truth and paper submissions.

Website typos

We fixed some typos on the rules section regarding the way in which the scores are calculated on phase 2. On phase 2, you should consider the positive and negative classes as follows:

  • The fake class is the positive class, and in the mask it's a black pixel [0-127].
  • The pristine class is the negative class, and in the mask it's a white pixel [128-255].

Submission of papers

Submission of papers for both phases are available in our submission system.

Submissions for phase 2

Submissions for phase 2 are already released in our submission system.

Phase 2 dataset is available!

The dataset for phase 2 is already available for download in Image Corpus section!

Phase 1 updates

We have split phase 1 in two categories:

  1. Content-based (e.g., signal and image processing techniques as well as computer vision with or without learning)
  2. Any other approach not based on image content (e.g., file information)
Please read the image corpus and rules section for more details.

Warning: defective masks in the corpus

Seven defective masks were detected in the training set. For more information, see the warning in the corpus section.

Submissions for phase 1

Submissions for phase 1 are already released in our submission system.

Phase 1 dataset is available!

The dataset for phase 1 is already available for download in Image Corpus section!

Note that this dataset is divided into a training and a testing set. In the training set the images are provided along with its corresponding class. However, the testing set are provided without any class information. For more information about the submission format, please visit the Rules section.

New date for the start of the competition

The competition will now begin on June 1st. The updated call for participation is available for download here.

Call for Participation

The competition will begin on May 25. The call for participation is available for download here.

Launch of our website

You can now easily track all information relating to the IFS-TC Image Forensics Challenge through our website. Stay tuned!