Ready-to-use OCR with 80+ supported languages and all popular writing scripts including: Latin, Chinese, Arabic, Devanagari, Cyrillic, etc.
11 September 2021 - Version 1.4.1
29 June 2021 - Version 1.4
30 May 2021 - Version 1.3.2
20 April 2021 - Version 1.3.1
y_thsto control merging behavior when
21 March 2021 - Version 1.3
recog_networkargument when creating a
Readerinstance. For example,
reader = easyocr.Reader(['en','fr'], recog_network='latin_g1')will use the 1st generation Latin model
For the latest stable release:
pip install easyocr
For the latest development release:
pip install git+git://github.com/jaidedai/easyocr.git
Note 1: For Windows, please install torch and torchvision first by following the official instructions here https://pytorch.org. On the pytorch website, be sure to select the right CUDA version you have. If you intend to run on CPU mode only, select
CUDA = None.
Note 2: We also provide a Dockerfile here.
import easyocr reader = easyocr.Reader(['ch_sim','en']) # this needs to run only once to load the model into memory result = reader.readtext('chinese.jpg')
The output will be in a list format, each item represents a bounding box, the text detected and confident level, respectively.
[([[189, 75], [469, 75], [469, 165], [189, 165]], '愚园路', 0.3754989504814148), ([[86, 80], [134, 80], [134, 128], [86, 128]], '西', 0.40452659130096436), ([[517, 81], [565, 81], [565, 123], [517, 123]], '东', 0.9989598989486694), ([[78, 126], [136, 126], [136, 156], [78, 156]], '315', 0.8125889301300049), ([[514, 126], [574, 126], [574, 156], [514, 156]], '309', 0.4971577227115631), ([[226, 170], [414, 170], [414, 220], [226, 220]], 'Yuyuan Rd.', 0.8261902332305908), ([[79, 173], [125, 173], [125, 213], [79, 213]], 'W', 0.9848111271858215), ([[529, 173], [569, 173], [569, 213], [529, 213]], 'E', 0.8405593633651733)]
['ch_sim','en'] is the list of languages you want to read. You can pass
several languages at once but not all languages can be used together.
English is compatible with every language and languages that share common characters are usually compatible with each other.
Note 2: Instead of the filepath
chinese.jpg, you can also pass an OpenCV image object (numpy array) or an image file as bytes. A URL to a raw image is also acceptable.
Note 3: The line
reader = easyocr.Reader(['ch_sim','en']) is for loading a model into memory. It takes some time but it needs to be run only once.
You can also set
detail=0 for simpler output.
reader.readtext('chinese.jpg', detail = 0)
['愚园路', '西', '东', '315', '309', 'Yuyuan Rd.', 'W', 'E']
Model weights for the chosen language will be automatically downloaded or you can download them manually from the model hub and put them in the '~/.EasyOCR/model' folder
In case you do not have a GPU, or your GPU has low memory, you can run the model in CPU-only mode by adding
reader = easyocr.Reader(['ch_sim','en'], gpu=False)
$ easyocr -l ch_sim en -f chinese.jpg --detail=1 --gpu=True
reader = easyocr.Reader(['en'], detection='DB', recognition = 'Transformer')
The idea is to be able to plug-in any state-of-the-art model into EasyOCR. There are a lot of geniuses trying to make better detection/recognition models, but we are not trying to be geniuses here. We just want to make their works quickly accessible to the public ... for free. (well, we believe most geniuses want their work to create a positive impact as fast/big as possible) The pipeline should be something like the below diagram. Grey slots are placeholders for changeable light blue modules.
This project is based on research and code from several papers and open-source repositories.
All deep learning execution is based on Pytorch. ❤️
The recognition model is a CRNN (paper). It is composed of 3 main components: feature extraction (we are currently using Resnet), sequence labeling (LSTM) and decoding (CTC). The training pipeline for recognition execution is a modified version of the deep-text-recognition-benchmark framework. (Thanks @ku21fan from @clovaai) This repository is a gem that deserves more recognition.
Data synthesis is based on TextRecognitionDataGenerator. (Thanks @Belval)
And a good read about CTC from distill.pub here.
Let's advance humanity together by making AI available to everyone!
3 ways to contribute:
Coder: Please send a PR for small bugs/improvements. For bigger ones, discuss with us by opening an issue first. There is a list of possible bug/improvement issues tagged with 'PR WELCOME'.
User: Tell us how EasyOCR benefits you/your organization to encourage further development. Also post failure cases in Issue Section to help improve future models.
Tech leader/Guru: If you found this library useful, please spread the word! (See Yann Lecun's post about EasyOCR)
To request a new language, we need you to send a PR with the 2 following files:
If your language has unique elements (such as 1. Arabic: characters change form when attached to each other + write from right to left 2. Thai: Some characters need to be above the line and some below), please educate us to the best of your ability and/or give useful links. It is important to take care of the detail to achieve a system that really works.
Lastly, please understand that our priority will have to go to popular languages or sets of languages that share large portions of their characters with each other (also tell us if this is the case for your language). It takes us at least a week to develop a new model, so you may have to wait a while for the new model to be released.