What is Viperlib?

Viperlib is a web-based resource library of images and presentation material illuminating the study of visual perception.

All images are given freely by the vision research community and are available for educational, non-profit use only.

By using this site, you agree to the conditions of use.

News

Check out the beta version now by clicking here.

Microsoft Research gift to Viperlib

Microsoft Research have very generously donated £25,000 to support the future development of Viperlib. We are planning to revamp the site allowing users to submit material in a simpler and more direct way. This will reduce the administrative load of running Viperlib and will keep the site up to date.

Obviously we want more material for the site, more images, more Viper2go tutorials, etc. We will now be able to commission new material so it is important that we discover what our users would like to see on Viperlib that we do not currently have. Please send requests for demos, tutorials and images to info@viperlib.com. If you have a great idea for the site and would like us to commission you to produce material, please get in touch.

We will also be looking at the possibility - and desirability - of extending the scope of Viperlib to incorporate auditory demonstrations. What are your views on this proposal? What about other senses too?

Viperlib is only as good as the people who give us the material, so please contribute to making the site even better.

Viperlib movies now in multiple formats

Previously, video clips on this website were only available as QuickTime movies. We are now pleased to announce that all clips are also available in both AVI and MP4 formats.

Updating the Viperlib website

If you have difficulty accessing Viperlib at any time it could be that an update is in progress, so please try again in an hour or so before reporting the problem.

Viper2go

Viper2go is an expansion of Viperlib, providing complete tutorial sessions. If you would like to create a Viper2go tutorial, we would be delighted to hear from you.  For more details about Viper2go visit our FAQ page.

If you've not seen Tutis Vilis' wonderful interactive Flash lectures, check them out here .

Images for you ...

This is your site and is only as good as the material that has been contributed. So please share your images. A huge thank you to all who have contributed images so far. The site would not exist without you!

Featured image

This 'cushion' appears to bulge outwards (click on the image to view it full size).

Image supplied by Akiyoshi Kitaoka at the College of Letters, Ritsumeikan University, Kyoto (Japan).

Most-viewed images

Since the Viperlib website was relaunched in August 2004, this is the item that has had the fourteenth highest number of hits. It is a demonstration of the Motion After-Effect, first reported when viewing the Falls of Foyers. Click on the image to view the movie.

Image supplied by George Mather at the University of Sussex.

Viperlib image tally: 2,801