桡骨远端骨折colles、smith和bartonX图像分类代码
时间: 2024-02-21 17:59:53 浏览: 17
好的,针对你的问题,我可以给你提供一个简单的桡骨远端骨折colles、smith和bartonX图像分类代码示例,供你参考:
```python
import tensorflow as tf
from tensorflow.keras.preprocessing.image import ImageDataGenerator
from tensorflow.keras.layers import Input, Conv2D, MaxPooling2D, Flatten, Dense, Dropout
from tensorflow.keras.models import Model
# 图像大小
img_size = (224, 224)
# 数据路径
data_path = "/path/to/data"
# 数据增强
train_datagen = ImageDataGenerator(
rescale=1./255, # 缩放像素值
rotation_range=20, # 旋转角度范围
width_shift_range=0.2, # 水平方向平移范围
height_shift_range=0.2, # 垂直方向平移范围
shear_range=0.2, # 剪切变换范围
zoom_range=0.2, # 缩放范围
horizontal_flip=True, # 水平翻转
vertical_flip=False, # 垂直翻转
validation_split=0.2 # 划分训练集和验证集
)
# 加载训练集和验证集数据
train_dataset = train_datagen.flow_from_directory(
data_path,
target_size=img_size,
batch_size=32,
class_mode='categorical',
subset='training'
)
val_dataset = train_datagen.flow_from_directory(
data_path,
target_size=img_size,
batch_size=32,
class_mode='categorical',
subset='validation'
)
# 搭建模型
inputs = Input(shape=(img_size[0], img_size[1], 3))
x = Conv2D(32, (3, 3), activation='relu')(inputs)
x = MaxPooling2D((2, 2))(x)
x = Conv2D(64, (3, 3), activation='relu')(x)
x = MaxPooling2D((2, 2))(x)
x = Conv2D(128, (3, 3), activation='relu')(x)
x = MaxPooling2D((2, 2))(x)
x = Flatten()(x)
x = Dense(256, activation='relu')(x)
x = Dropout(0.5)(x)
outputs = Dense(3, activation='softmax')(x)
model = Model(inputs=inputs, outputs=outputs)
# 编译模型
model.compile(
optimizer='adam',
loss='categorical_crossentropy',
metrics=['accuracy']
)
# 训练模型
model.fit(
train_dataset,
validation_data=val_dataset,
epochs=20,
verbose=1
)
# 测试模型
test_datagen = ImageDataGenerator(rescale=1./255)
test_dataset = test_datagen.flow_from_directory(
data_path,
target_size=img_size,
batch_size=32,
class_mode='categorical',
shuffle=False
)
test_loss, test_acc = model.evaluate(test_dataset, verbose=2)
print("Test accuracy:", test_acc)
```
需要注意的是,这只是一个简单的示例代码,实际应用中需要根据具体的数据集和任务进行适当的修改和调整。同时,也需要注意数据的质量和标注的准确性,以避免模型出现偏差或过拟合的情况。