Script for fetching labelled images generated on https://app.labelbox.com/

Example

Original image	Output

Why I made this

• Images labelled in Labelbox can't be directly exported in bulk; Labelbox's export function generates a JSON file containing URLs to the labelled images, however...
• The labelled images downloaded from are in the form of "masks" with the object of interest in white and the background as transparent

How this works

• Parse the JSON file exported from Labelbox to extract image URLs
• Fetch the labelled (and original) images from their URLs
• Change the white/transparent mask to custom colors with OpenCV.

Instructions:

1. Export Labelbox labels as JSON file.
2. Put JSON file in input folder and run main.py to fetch original images, generate colored-corrected labelled images & generate training.txt
3. Train :)