python使用model = tf.keras.models.load_model('model_cnnfzc.h5')加载cnn训练模型后,如何应用于图片识别(具体要用到的语句等)
时间: 2024-04-09 17:28:11 浏览: 212
加载模型后,你可以使用模型的`predict`方法对图片进行识别。具体步骤如下:
1. 导入必要的库:
```python
import tensorflow as tf
import numpy as np
```
2. 加载模型:
```python
model = tf.keras.models.load_model('model_cnnfzc.h5')
```
3. 准备图片数据:
```python
# 读取图片
image = tf.keras.preprocessing.image.load_img('your_image.jpg', target_size=(height, width))
# 转换为数组
image_array = tf.keras.preprocessing.image.img_to_array(image)
# 扩展维度
image_array = np.expand_dims(image_array, axis=0)
# 归一化
image_array = image_array / 255.0
```
确保`height`和`width`与训练模型时设置的输入大小一致。
4. 使用模型进行预测:
```python
predictions = model.predict(image_array)
```
预测结果是一个概率向量,可以使用`np.argmax`获取最大概率对应的类别索引:
```python
predicted_class_index = np.argmax(predictions)
```
你还可以根据模型训练时定义的类别标签,获取对应的类别名称。
这样就可以将模型应用于图片识别了。记得将`your_image.jpg`替换成你要识别的图片路径。
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