Go to the datasets folder
Link given in the download_and_extract file
Download the datasets and extract in the datasets folder only from the given link
Or you can use this commads in command line (your path must be in datasets folder only):
wget https://www.robots.ox.ac.uk/~vgg/data/text/mjsynth.tar.gz
tar -xvzf mjsynth.tar.gz
python new-model.py
Change the filename in the source code and run
python new-model-test.py
Size of the image must be Height = 32 and Width = 128