For evaluation, please go to examples/classification.
Convert *.caffemodel to *.npz.
$ python caffe2npz.py <source>.caffemodel <target>.npz
The pretrained .caffemodel for VGG-16 can be downloaded from here.
http://www.robots.ox.ac.uk/%7Evgg/software/very_deep/caffe/VGG_ILSVRC_16_layers.caffemodel