Prerequisites

• Python 3

Installation

git clone https://github.com/AIoT-Lab-BKAI/naver-extract-lmdb
cd naver-extract-lmdb

Create new python virtual environments

python -m venv ./naver-extract-lmdb
source ./naver-extract-lmdb/bin/activate
pip install -r requirements.txt

How to use

python extract.py --src PATH_TO_LMDB_FOLDER --dst PATH_TO_SAVE_FOLDER

• We specified path to LMDB folders in attached docs here
• For example, if you want to extract '/mnt/disk2/baoanh/SCAN-UNIGRAM-MULTIPROCESS-FIRST-45M/train_ocr' folder into 'unigram_images' folder, use this command:

python extract.py --src /mnt/disk2/baoanh/SCAN-UNIGRAM-MULTIPROCESS-FIRST-45M/train_ocr --dst unigram_images

• After running, it will save all the raw images into 'unigram_images' folder and corresponding labels for each raw image in 'unigram_images_label' folder

Results

• Raw images folder (E.g. 'unigram_images' folder)
• Label folder with corresponding label for each image in images folder (E.g. 'unigram_images_label' folder)

Notes

• It may take some times to extract large folder (e.g. To extract 1.9GB folder, it took ~20 minutes)

Contact

Email: anh.pnb176682@sis.hust.edu.vn