thundarstrom/indian-anpr-ocr-corpus
Indian License Plate Character Recognition (PARSeq & LMDB) Part of the Edge-AI Traffic & Vehicle Analytics System repository by thundarstrom. Dataset Summary A curated dataset of 18,537 normalized license plate image crops aligned strictly with Indian Motor Vehicle Act alphanumeric formats (^[A-Z]{2}[0-9]{1,2}[A-Z]{1,3}[0-9]{4}$). Formats Provided Raw Crops & Ground Truth: parseq_dataset/ with gt.txt (Tab-delimited: filename \t text).… See the full description on the dataset page: https://huggingface.co/datasets/thundarstrom/indian-anpr-ocr-corpus.
Indian License Plate Character Recognition (PARSeq & LMDB)
Part of the Edge-AI Traffic & Vehicle Analytics System repository by thundarstrom.
Dataset Summary
A curated dataset of 18,537 normalized license plate image crops aligned strictly with Indian Motor Vehicle Act alphanumeric formats (^[A-Z]{2}[0-9]{1,2}[A-Z]{1,3}[0-9]{4}$).
Formats Provided
- Raw Crops & Ground Truth:
parseq_dataset/withgt.txt(Tab-delimited:filename \t text). - High-Throughput LMDB Store: Ready for zero-bottleneck GPU memory-mapped I/O in PyTorch Lightning / PARSeq.
Splits
- Train: 15,756 crops (85%)
- Val: 1,854 crops (10%)
- Test: 927 crops (5%)
- Vocabulary: 36 alphanumeric characters (0-9, A-Z)
How to Access and Download
Using Automated Project Downloader (Extracts automatically)
# Clone / pull and auto-extract dataset
python scripts/download_hf_datasets.py --dataset anpr_ocr --org thundarstromUsing huggingface_hub Python SDK
from huggingface_hub import snapshot_download
# Download into local dataset directory
local_path = snapshot_download(
repo_id="thundarstrom/indian-anpr-ocr-corpus",
repo_type="dataset",
local_dir="data/datasets/parseq_dataset"
)
print(f"Dataset downloaded to: {local_path}")Recommended Training / Evaluation Recipe
python scripts/train_parseq.py --data_dir data/datasets/parseq_lmdb --batch_size 256 --max_epochs 50 --lr 7e-4Citation & Maintainer
- Maintained by:
thundarstrom - Project: Edge-AI Real-Time Traffic Violation Detection & ANPR
- License: CC-BY-4.0
