MNIST Handwritten Digits as JSON

All data is from http://yann.lecun.com/exdb/mnist/.

The data is in a JSON format. Each JSON file contains an array of objects, where each object has two fields:

• image: a 784-element array of numbers [0,255], representing pixel values for each 28x28 handwritten image. 0 means background (white) and 255 means foreground (black).
• label: the label for this character

There are two JSON files; one is training data and the other is test data. These two sets were provided from the original MNIST dataset.

File sizes

70M   mnist_handwritten_test.json
421M  mnist_handwritten_train.json
2.8M  mnist_handwritten_test.json.gz
17M   mnist_handwritten_train.json.gz

I strongly suggest you download the gzipped files, as the non-gzipped files are very large

To download the files, something like this should work:

curl -LO https://github.com/lorenmh/mnist_handwritten_json/raw/master/mnist_handwritten_test.json.gz
curl -LO https://github.com/lorenmh/mnist_handwritten_json/raw/master/mnist_handwritten_train.json.gz

To decompress:

gunzip *.gz

If you clone you will need git-lfs.