This code was cloned from https://github.com/robwhess/opensift and then modified in order to build the q-SIFT algorithm. This is an open source code created for research and academic purposes. For more information, refer to the following paper. OR, If you have used this in your research, please cite:
P. S. Rodrigues, G. A. Wachs-Lopes, G. Antônio Giraldi and M. Horvath, in press. q-SIFT: A Strategy Based on Non-Extensive Statistic to Improve SIFT Algorithm Under Severe Conditions. Pattern Recognition.