This repository contains Alpha-Numeric Handwritten Dataset stored in Python Numpy array; and is sub-set of dataset from HASYv2.

HASYv2 contains 32px x 32px images of 369 symbol classes while AlphaNum-HASYv2 contains 32px x 32px images of 62 (or 0-61) symbol classes (0-1 = 10, A-Z = 26, a-z = 26)

Under output_data_alpha_num directory 3 files are present, which are as followed:

• alphanum-hasy-data-X.npy : Contains images data-set with size (4658, 32, 32)
• alphanum-hasy-data-y.npy : Contains labels data-set with size (4658,)
• symbols.csv : Contains mapping between symbol_id and its symbol (i.e digit/char)

Assumptions:

• This code is beign run on MacOS, because I have not tested it on any other OS yet ;)
• User has cloned this repo successfully and is in root of this project
• This code is using Python 3.x

Follow below steps to regenerate dataset:

0: Download HASYv2 dataset (Required only once)

$ cd HASYv2_data
$ bash dowload_data.sh

1: Regenerate AlphaNum-HASYv2 dataset

$ cd 'TO_ROOT_PATH_OF_THIS_REPO'
$ pip install -r requirements.txt
$ python hasy_to_numpy_data_v2.py

Output file are generated under output_data_alpha_num directory