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unet-nested-multiple-classification's Introduction

Unet and Unet++: multiple classification using Pytorch

This repository contains code for a multiple classification image segmentation model based on UNet and UNet++

Usage

Note : Use Python 3

Dataset

make sure to put the files as the following structure:

data
├── images
|   ├── 0a7e06.jpg
│   ├── 0aab0a.jpg
│   ├── 0b1761.jpg
│   ├── ...
|
└── masks
    ├── 0a7e06.png
    ├── 0aab0a.png
    ├── 0b1761.png
    ├── ...

mask is a single-channel category index. For example, your dataset has three categories, mask should be 8-bit images with value 0,1,2 as the categorical value, this image looks black.

Demo dataset

You can download the demo dataset from here to data/

Training

python train.py

inference

python inference.py -m ./data/checkpoints/epoch_10.pth -i ./data/test/input -o ./data/test/output

If you want to highlight your mask with color, you can

python inference_color.py -m ./data/checkpoints/epoch_10.pth -i ./data/test/input -o ./data/test/output

Tensorboard

You can visualize in real time the train and val losses, along with the model predictions with tensorboard:

tensorboard --logdir=runs

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unet-nested-multiple-classification's Issues

Nothing is classified

When I training the UNet with original settings and dataset , nothing is classified, as is shown in the image
image

issue in testing

for masks, I make a multi-classification for 10 classes, I set the value of background as "0" for gray image, but in the testing result, I can always see the original image for the background, which means the background have not been classified. could you bring me some suggestions? should I begin background in value "1" in masks?

issue in training

INFO: Using device cuda
INFO: Network:
NestedUNet model
3 input channels
3 output channels (classes)
Bilinear upscaling
INFO: Creating dataset with 20 examples
training stops after this. can anyone help

数据制作问题

老哥,能给下数据处理那块的代码吗,将json转成图片,再获取全局类别,将图片转成uint8的格式

训练有问题吧

你好,用你的代码和你的数据复现,损失韩式很大,验证集才60几,是否有问题?

实例分割效果的问题

这位大哥,我在用你框架的时候,用的是9类的(算上背景)分割,效果感觉很糟,是不是我数据太少了,才400张左右==

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