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这是之前我和我的组员参与Tiny-mind 手写汉字识别大赛的一个项目, 主要实现了用Resnet或VGG16作为Backbone来训练一个分类任务以及基于opencv的一些图片数据集增强,最终我们组的成绩为TOP-5准确率99.19, 排名5/700。这个项目也可以用于其他的图片分类任务,整个网络框架是基于Tensorflow实现的

Python 100.00%

tensorflow-resnet-image-classification's Introduction

Tensorflow-Resnet-Image-Classification

这是之前我和我的组员参与Tiny-mind 手写汉字识别大赛的一个项目, 主要实现了用Resnet或VGG16作为Backbone来训练一个分类任务以及基于opencv的一些图片数据集增强,最终我们组的成绩为TOP-5准确率99.19, 排名5/700。这个项目也可以用于其他的图片分类任务,整个网络框架是基于Tensorflow实现的

数据集格式

训练数据集和测试数据集分别存放在data/train和data/test2文件夹下,数据集格式:

├── data
      ├── train
      │   ├── 夏
      │       ├── 001.jpg
      │       ├── 002.jpg
      |       ├── 003.jpg
      │   ├── 武
      │       ├── 004.jpg
      │       ├── 005.jpg
      |       ├── 006.jpg
      │   ├── 陈
      │       ├── 007.jpg
      │       ├── 008.jpg
      │       ├── 009.jpg
      ......
      ├── test2

对于每一个类别,其文件夹名称就是类别名称

数据增强

cd $PATH_ROOT
python data_update.py

进行训练数据增强的操作,主要包括图像的旋转,仿射变换,伽马变化,随机高斯噪声,运行完成后data文件夹下的图片目录会保存相应的增强数据图片。

训练

cd $PATH_ROOT
python train.py

进行网络的训练,在训练之前可以修改config.py文件对网络相应的配置进行修改,如训练步数,L2正则化系数,网络结构(Resnet50,Resnet101,Resnet152)进行修改。
summay文件夹下存放的是tensorboard的缓存

测试

cd $PATH_ROOT
python test.py

进行训练好的模型测试,在测试之前可以修改output_2文件夹下,修改checkpoint文件中model_checkpoint_path的值来指定测试不同步数下的模型。最终$PATH_ROOT下会生成一个data.txt文件和一个res_test.csv文件,data.txt文件存放的是每一张图片top5 类别的score, res_test.csv是赛事要求提交的csv文件。
关于测试可视化:
取消注释test.py文件中

# print(name_label) //python
# cv.imshow('sprint(image_datahow', test_image_single_1)
# cv.waitKey(0)

单张显示图片并打印top5的分数

tensorflow-resnet-image-classification's People

Contributors

longjun123456 avatar

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