CTPN + DenseNet + CTC based end-to-end Chinese OCR implemented using tensorflow and keras

Overview

简介

基于Tensorflow和Keras实现端到端的不定长中文字符检测和识别

  • 文本检测:CTPN
  • 文本识别:DenseNet + CTC

环境部署

sh setup.sh
  • 注:CPU环境执行前需注释掉for gpu部分,并解开for cpu部分的注释

Demo

将测试图片放入test_images目录,检测结果会保存到test_result中

python demo.py

模型训练

CTPN训练

详见ctpn/README.md

DenseNet + CTC训练

1. 数据准备

数据集:https://pan.baidu.com/s/1QkI7kjah8SPHwOQ40rS1Pw (密码:lu7m)

  • 共约364万张图片,按照99:1划分成训练集和验证集
  • 数据利用中文语料库(新闻 + 文言文),通过字体、大小、灰度、模糊、透视、拉伸等变化随机生成
  • 包含汉字、英文字母、数字和标点共5990个字符
  • 每个样本固定10个字符,字符随机截取自语料库中的句子
  • 图片分辨率统一为280x32

图片解压后放置到train/images目录下,描述文件放到train目录下

2. 训练

cd train
python train.py

3. 结果

val acc predict model
0.983 8ms 18.9MB
  • GPU: GTX TITAN X
  • Keras Backend: Tensorflow

4. 生成自己的样本

可参考SynthText_Chinese_versionTextRecognitionDataGeneratortext_renderer

效果展示

参考

[1] https://github.com/eragonruan/text-detection-ctpn

[2] https://github.com/senlinuc/caffe_ocr

[3] https://github.com/chineseocr/chinese-ocr

[4] https://github.com/xiaomaxiao/keras_ocr

Owner
Yang Chenguang
Yang Chenguang
This is an API written in python that uses FastAPI. It is a simple API that can detect discord tokens in Images.

Welcome This is an API written in python that uses FastAPI. It is a simple API that can detect discord tokens in Images. Installation There are curren

8 Jul 29, 2022
This repo contains a script that allows us to find range of colors in images using openCV, and then convert them into geo vectors.

Vectorizing color range This repo contains a script that allows us to find range of colors in images using openCV, and then convert them into geo vect

Development Seed 9 Jul 27, 2022
CRAFT-Pyotorch:Character Region Awareness for Text Detection Reimplementation for Pytorch

CRAFT-Reimplementation Note:If you have any problems, please comment. Or you can join us weChat group. The QR code will update in issues #49 . Reimple

453 Dec 28, 2022
Open Source Differentiable Computer Vision Library for PyTorch

Kornia is a differentiable computer vision library for PyTorch. It consists of a set of routines and differentiable modules to solve generic computer

kornia 7.6k Jan 04, 2023
A pure pytorch implemented ocr project including text detection and recognition

ocr.pytorch A pure pytorch implemented ocr project. Text detection is based CTPN and text recognition is based CRNN. More detection and recognition me

coura 444 Dec 30, 2022
kaldi-asr/kaldi is the official location of the Kaldi project.

Kaldi Speech Recognition Toolkit To build the toolkit: see ./INSTALL. These instructions are valid for UNIX systems including various flavors of Linux

Kaldi 12.3k Jan 05, 2023
Program created with opencv that allows you to automatically count your repetitions on several fitness exercises.

Virtual partner of gym Description Program created with opencv that allows you to automatically count your repetitions on several fitness exercises li

1 Jan 04, 2022
Hiiii this is the Spanish for Linux and win 10 and in the near future the english version of PortScan my new tool on which you can see what ports are Open only with the IP adress.

PortScanner-by-IIT PortScanner es una herramienta programada en Python3. Como su nombre indica esta herramienta escanea los primeros 150 puertos de re

5 Sep 19, 2022
Image processing in Python

scikit-image: Image processing in Python Website (including documentation): https://scikit-image.org/ Mailing list: https://mail.python.org/mailman3/l

Image Processing Toolbox for SciPy 5.2k Dec 30, 2022
Semantic-based Patch Detection for Binary Programs

PMatch Semantic-based Patch Detection for Binary Programs Requirement tensorflow-gpu 1.13.1 numpy 1.16.2 scikit-learn 0.20.3 ssdeep 3.4 Usage tar -xvz

Mr.Curiosity 3 Sep 02, 2022
Fun program to overlay a mask to yourself using a webcam

Superhero Mask Overlay Description Simple project made for fun. It consists of placing a mask (a PNG image with transparent background) on your face.

KB Kwan 10 Dec 01, 2022
https://arxiv.org/abs/1904.01941

Character-Region-Awareness-for-Text-Detection- https://arxiv.org/abs/1904.01941 Train You can train SynthText data use python source/train_SynthText.p

DayDayUp 120 Dec 28, 2022
Brief idea about our project is mentioned in project presentation file.

Brief idea about our project is mentioned in project presentation file. You just have to run attendance.py file in your suitable IDE but we prefer jupyter lab.

Dhruv ;-) 3 Mar 20, 2022
Image augmentation for machine learning experiments.

imgaug This python library helps you with augmenting images for your machine learning projects. It converts a set of input images into a new, much lar

Alexander Jung 13.2k Jan 02, 2023
Histogram specification using openCV in python .

histogram specification using openCV in python . Have to input miu and sigma to draw gausssian distribution which will be used to map the input image . Example input can be miu = 128 sigma = 30

Tamzid hasan 6 Nov 17, 2021
Handwritten_Text_Recognition

Deep Learning framework for Line-level Handwritten Text Recognition Short presentation of our project Introduction Installation 2.a Install conda envi

24 Jul 15, 2022
Unofficial implementation of "TableNet: Deep Learning model for end-to-end Table detection and Tabular data extraction from Scanned Document Images"

TableNet Unofficial implementation of ICDAR 2019 paper : TableNet: Deep Learning model for end-to-end Table detection and Tabular data extraction from

Jainam Shah 243 Dec 30, 2022
A novel region proposal network for more general object detection ( including scene text detection ).

DeRPN: Taking a further step toward more general object detection DeRPN is a novel region proposal network which concentrates on improving the adaptiv

Deep Learning and Vision Computing Lab, SCUT 151 Dec 12, 2022
📷 Face Recognition using Haar-Cascade Classifier, OpenCV, and Python

Face-Recognition-System Face Recognition using Haar-Cascade Classifier, OpenCV and Python. This project is based on face detection and face recognitio

1 Jan 10, 2022
This is a GUI program which consist of 4 OpenCV projects

Tkinter-OpenCV Project Using Tkinter, Opencv, Mediapipe This is a python GUI program using Tkinter which consist of 4 OpenCV projects 1. Finger Counte

Arya Bagde 3 Feb 22, 2022