The Tsinghua Palmprint Database
To encourage further research, we make the multi-impression subset of THUPALMLAB 
publicly available here. This database contains 1,280 palmprint images from 80 subjects
(two palms per person and eight impressions per palm) captured using a commercial palmprint
scanner of Hisign. All the palmprint images are of 2040x2040 pixels and 500 ppi. The uni-impression
subset of THUPALMLAB is not publicly available.
Example of a palmprint image
You are free to download the dataset for non-commercial research and educational purposes: THUPALMLAB.rar
Research papers that used this database should cite the following paper.
Jifeng Dai, Jianjiang Feng, Jie Zhou, "Robust and efficient ridge-based palmprint matching",IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 34, no. 8, pp. 1618-1632, 2012.
Contact Dr. Jianjiang Feng for further information.