Ndjson_to_png_converter

A simple tool for converting Googles QuickDraw Ndjson dataset into useable png images. The Ndjson dataset can be found here. The resulting png will be 255x255 with a white background and black drawing, similar to the original image.

This tool was made for our own little project and designed to convert only a subset of the whole dataset. If you want to convert all 345 categories, you might want to make some changes.

Installation

Simply clone the repository and run npm install.

Usage

1. Create a directory named data at the root of the project folder.
2. Paste all your ndjson-files into data
3. Create a subdirectory images in data
4. Create a subdirectory in data\images for each category you want to convert. The subdirectories should be named according to the category name, for example apple.
5. Add your categories to dataList in the parser.ts file.
6. Compile the parser.ts file and run npm start. In the console you'll get ask which category and how many files you want to convert.

The png images will be saved to their according subdirectories.