'./MNIST/MNIST/raw',
时间: 2024-05-20 11:09:15 浏览: 17
'./MNIST/MNIST/raw'是一个文件路径,通常用于存储MNIST数据集的原始文件。如果你想使用Python从原始文件读取MNIST数据集,请使用以下代码:
```python
import os
import gzip
# 定义MNIST数据集路径
data_path = './MNIST/MNIST/raw'
# 读取训练集和测试集
with gzip.open(os.path.join(data_path, 'train-images-idx3-ubyte.gz'), 'rb') as f:
train_images = np.frombuffer(f.read(), np.uint8, offset=16).reshape(-1, 28*28)
with gzip.open(os.path.join(data_path, 'train-labels-idx1-ubyte.gz'), 'rb') as f:
train_labels = np.frombuffer(f.read(), np.uint8, offset=8)
with gzip.open(os.path.join(data_path, 't10k-images-idx3-ubyte.gz'), 'rb') as f:
test_images = np.frombuffer(f.read(), np.uint8, offset=16).reshape(-1, 28*28)
with gzip.open(os.path.join(data_path, 't10k-labels-idx1-ubyte.gz'), 'rb') as f:
test_labels = np.frombuffer(f.read(), np.uint8, offset=8)
```
上面的代码将原始的MNIST数据集读取到内存中,其中训练集包含60000张28×28的手写数字图片,而测试集包含10000张图片。每张图片都用一个长度为784的一维数组表示。