1. Requirement:
    caffe: should be compiled with "WITH_PYTHON_LAYER := 1" in "Makefile.config"
    python2: packages required: numpy, scipy, python-lmdb, pycaffe (which is compiled with caffe)
    
    To make your compiled caffe and pycaffe work, add $path_to_ur_caffe/build/tools$
    to your $PATH$ environment and $path_to_ur_caffe/python$ to your $PYTHONPATH$ environment.

2. User should copy the files paviaU.mat and paviaU_gt.mat to ./data/  . 
3. Please cite the following paper in your publications if the codes help your research: 
	```
	@article{guo2019spectral,
		author = {A. J. X. {Guo} and F. {Zhu}},
		doi = {10.1109/TGRS.2018.2869004},
		issn = {0196-2892},
		journal = {IEEE Transactions on Geoscience and Remote Sensing},
		keywords = {Feature extraction; Training; Neurons; Hyperspectral imaging; Testing; Iron; Artificial neural networks (ANN); deep learning; feature extraction; hyperspectral image classification},
		month = {March},
		number = {3},
		pages = {1755–1767},
		title = {Spectral-Spatial Feature Extraction and Classification by ANN Supervised With Center Loss in Hyperspectral Imagery},
		volume = {57},
		year = {2019}
	}
	```