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Python image recognition OCR
2020-11-07 20:56:00 【Coxhuang】
List of articles
- Python Image recognition OCR
- #1 demand
- #2 Environmental Science
- #3 install
- #3.1 macOS
- #3.2 Linux(CentOS)
- #4 Use
- #4.1 python install pytesseract library
- #4.2 Python Code
- #5 Online case
Python Image recognition OCR
#1 demand
- Identify the information in the picture , Such as QR code
#2 Environmental Science
macOS / Linux Python3.7.6
#3 install
#3.1 macOS
- install tesseract
// Install only tesseract, Don't install training tools brew install tesseract // install tesseract At the same time install training tools brew install --with-training-tools tesseract // install tesseract Install all languages at the same time , The language pack is bigger , If installed, it will take a long time , It is not recommended to install , Select on demand brew install --all-languages tesseract // install tesseract, And install training tools and language brew install --all-languages --with-training-tools tesseract
2. Download the language pack
Address : https://github.com/tesseract-ocr/tessdata
I have installed a Chinese language pack here
Chinese language pack : https://github.com/tesseract-ocr/tessdata/blob/master/chi_sim.traineddata
Then copy the downloaded Chinese language pack to the following path :
/usr/local/Cellar/tesseract/4.0.0_1/share/tessdata
3. Check out the local language pack
tesseract --list-langs
#3.2 Linux(CentOS)
- Installation dependency
yum install autoconf automake libtool libjpeg-devel libpng-devel libtiff-devel zlib-devel
2. install leptonica
download : wget https://github.com/tesseract-ocr/tesseract/archive/4.1.0.tar.gz
Unpack the installation
tar -xzvf leptonica-1.74.4.tar.gz cd leptonica-1.74.4.tar.gz ./configure --profix=/usr/local/leptonica make sudo make install
3. install tesseract-ocr
wget https://github.com/tesseract-ocr/tesseract/archive/3.04.zip unzip 3.04.zip cd tesseract-3.04/ ./configure make && make install sudo ldconfig
I have installed a Chinese language pack here
Chinese language pack : https://github.com/tesseract-ocr/tessdata/blob/master/chi_sim.traineddata
Then copy the downloaded Chinese language pack to the following path :
/usr/local/share/tessdata
#4 Use
#4.1 python install pytesseract library
pip install pytesseract pip install Pillow
#4.2 Python Code
from PIL import Image import pytesseract # Specify the image path and identify the language data = pytesseract.image_to_string(Image.open('/Users/Documents/1.png'), lang='chi_sim') print(data)
#5 Online case
Address :
Participation of this paper Tencent cloud media sharing plan , You are welcome to join us , share .
版权声明
本文为[Coxhuang]所创,转载请带上原文链接,感谢
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