ctpn+crnn Scene character recognition
https://github.com/tianzhi0549/CTPN
https://github.com/bgshih/crnn
https://pan.baidu.com/s/19outaxa-vRjPkWaDuTNUPg
copy ctpn_trained_model.caffemodel to ./CTPN.models
https://pan.baidu.com/s/1Tap1VuKRT98ThZo8pzyztw https://pan.baidu.com/s/1b5CuFCjXe2gAIuK9Yu4L2g
copy netCRNN63.pth to ./crnn/samples
python demo.py
