The dataset is only provided for research purposes and without any warranty. Any commercial use is prohibited. When using, you should cite the following paper:

P.Fischer, A. Dosovitskiy, T. Brox
Descriptor Matching with Convolutional Neural Networks: a Comparison to SIFT,
on arXiv(1405.5769), May 2014.

Link to dataset: Dataset download

The file also includes MATLAB code to process the ground truth of the geometric transformations. Given the coordinates in one image of a pair, they can be mapped to the other using the applyTransformationToCoords() function. Pairs are always made from the _original image and a warped image. Hence the ground truth in blur2.mat corresponds to the pair _original.jpg / blur2.jpg.