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58 lines
2.1 KiB
58 lines
2.1 KiB
import sys |
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sys.path.append("E:/dataFiles/github/PaddleRS") |
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import paddlers as pdrs |
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from paddlers import transforms as T |
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# 下载aistudio的数据到当前文件夹并解压、整理 |
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# https://aistudio.baidu.com/aistudio/datasetdetail/53795 |
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# 定义训练和验证时的transforms |
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# API说明：https://github.com/PaddlePaddle/paddlers/blob/develop/docs/apis/transforms/transforms.md |
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train_transforms = T.Compose([ |
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T.Resize(target_size=512), |
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T.RandomHorizontalFlip(), |
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T.Normalize( |
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mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5]), |
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]) |
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eval_transforms = T.Compose([ |
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T.Resize(target_size=512), |
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T.Normalize( |
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mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5]), |
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]) |
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# 定义训练和验证所用的数据集 |
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# API说明：https://github.com/PaddlePaddle/paddlers/blob/develop/docs/apis/datasets.md |
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train_dataset = pdrs.datasets.CDDataset( |
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data_dir='E:/dataFiles/github/PaddleRS/tutorials/train/change_detection/DataSet', |
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file_list='tutorials/train/change_detection/DataSet/train.txt', |
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label_list='tutorials/train/change_detection/DataSet/labels.txt', |
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transforms=train_transforms, |
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num_workers=0, |
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shuffle=True) |
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eval_dataset = pdrs.datasets.CDDataset( |
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data_dir='E:/dataFiles/github/PaddleRS/tutorials/train/change_detection/DataSet', |
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file_list='tutorials/train/change_detection/DataSet/val.txt', |
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label_list='tutorials/train/change_detection/DataSet/labels.txt', |
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transforms=eval_transforms, |
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num_workers=0, |
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shuffle=False) |
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# 初始化模型，并进行训练 |
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# 可使用VisualDL查看训练指标，参考https://github.com/PaddlePaddle/paddlers/blob/develop/docs/visualdl.md |
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num_classes = len(train_dataset.labels) |
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model = pdrs.tasks.CDNet(num_classes=num_classes, in_channels=6) |
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# API说明：https://github.com/PaddlePaddle/paddlers/blob/develop/docs/apis/models/semantic_segmentation.md |
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# 各参数介绍与调整说明：https://github.com/PaddlePaddle/paddlers/blob/develop/docs/parameters.md |
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model.train( |
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num_epochs=1, |
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train_dataset=train_dataset, |
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train_batch_size=4, |
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eval_dataset=eval_dataset, |
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learning_rate=0.01, |
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pretrain_weights=None, |
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save_dir='output/cdnet')
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