Official Pytorch implementation of CRAFT text detector | Paper | Pretrained Model | Supplementary
Youngmin Baek, Bado Lee, Dongyoon Han, Sangdoo Yun, Hwalsuk Lee.
Clova AI Research, NAVER Corp.
Packaged by Vinh Quang Tran
Based on Ashish Jha's implementation. Modified for use with Windows and CUDA support.
PyTorch implementation for CRAFT text detector that effectively detect text area by exploring each character region and affinity between characters. The bounding box of texts are obtained by simply finding minimum bounding rectangles on binary map after thresholding character region and affinity scores.
13 Jun, 2019: Initial update
20 Jul, 2019: Added post-processing for polygon result
28 Sep, 2019: Added the trained model on IC15 and the link refiner
25 Jan, 2020: Put it together as a PyPI package
20 Mar, 2021: Modified for use with Windows and CUDA support.
Changes from Ashish Jha's implementation:
- CRAFT will now run on CUDA GPU if available.
- Changed model downloading directory to working directory for compatibility with Windows.
- Removed required packages' version from
requirements.txt
.
git clone https://github.com/vinhtq115/CRAFT-pytorch
cd CRAFT-pytorch
pip install -r requirements.txt
pip install -e .
import craft
import cv2
img = cv2.imread('/path/to/image/file')
# run the detector
bboxes, polys, heatmap = craft.detect_text(img)
# view the image with bounding boxes
img_boxed = craft.show_bounding_boxes(img, bboxes)
cv2.imshow('fig', img_boxed)
# view detection heatmap
cv2.imshow('fig', heatmap)
- PyTorch
- torchvision
- opencv-python
- check requirements.txt
pip install -r requirements.txt
The code for training is not included in this repository, and we cannot release the full training code for IP reason.
--text_threshold
: text confidence threshold--low_text
: text low-bound score--link_threshold
: link confidence threshold--canvas_size
: max image size for inference--mag_ratio
: image magnification ratio--refine
: use link refiner for sentence-level dataset--refiner_model
: pretrained refiner model
- WebDemo : https://demo.ocr.clova.ai/
- Repo of recognition : https://github.com/clovaai/deep-text-recognition-benchmark
@inproceedings{baek2019character,
title={Character Region Awareness for Text Detection},
author={Baek, Youngmin and Lee, Bado and Han, Dongyoon and Yun, Sangdoo and Lee, Hwalsuk},
booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
pages={9365--9374},
year={2019}
}
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