A simple MNIST data reader in pure Java. Implementation returns a two dimensional byte array wrapper. The code is not super optimized; but it is fast enough to load quickly.
MNIST is a popular handwritten digits database used extensively in machine learning, computer vision communities.
Original MNIST data and the structure of the data can be found at http://yann.lecun.com/exdb/mnist/
MNIST data is already downloaded and stored in data directory.