Shadow Patches

This dataset contains images of matte colour patches placed on a shadow boundary. These images provide a particularly hard case for Colour Constancy algorithms because half of the pixels in each image have a different light colour to the rest of the image.  Each scene was captured twice, one with a Macbeth Colour Checker in shadow and one with it out of shadow. The shutter speed and aperture size was set to automatic. 

Example Images



Click here to download the zip file. The zip file contains the linear images and the cropped versions. The average patches of the Macbeth Colour Checker on each side of the shadow edge have been provided in a matlab .mat file.