UPenn Natural Image Database

This is a freely accessible database of ~4000 natural scenes from baboon habitat in Botswana, taken with a calibrated Nikon D70 camera and preprocessed into various formats (luminance, RGB, LMS) suitable for psychophysics / neuroscience / computer vision research.

Images are distributed under Creative Commons Attribution NonCommercial Unported License.

Enter the database

If you use images from this database for reasearch, please cite Tkacik G et al, "Natural images from the birthplace of the human eye", PLoS ONE 6: e20409 (2011).

After entering the database, you will find a Gallery where you can browse the images organized into albums that focus on different scenery, close-ups of the plants, ground etc.

Add whole albums or single images to the Cart.

While you are viewing items in the Cart, you can select "Download in ZIP" option in the "cart actions" menu in the upper right corner of the screen:

You will be taken to the checkout screen, where you can select the download formats. As soon as the database has prepared the images for you, you will receive an email with instructions for downloading your selection using FTP. You can always access the full database directly at ftp://anonymous@tofu.psych.upenn.edu/fulldb