我已经导入了一个Kaggle硬币图像数据集。train、test和validation文件夹包含100个子文件夹。我想对我的训练数据('train'
)调用ImageDataBunch.from_folder
,它包含路径下的子文件夹:('/content/coins/data/train'
)
path = Path("/content/coins/data")
path_img = ('/content/coins/data/train')
path.ls()
#[PosixPath('/content/coins/data/train'),
#PosixPath('/content/coins/data/cat_to_name.json'),
#PosixPath('/content/coins/data/test'),
#PosixPath('/content/coins/data/validation')]
fnames = path/'cat_to_name.json'
import json
with open(fnames) as f:
data = json.load(f)
df = pd.DataFrame.from_dict(data, orient='index')
np.random.seed(2)
pat = re.compile(r'/([^/]+)_\d+.jpg$')
data = ImageDataBunch.from_folder(path_img, fnames, pat, ds_tfms=get_transforms(),
size=img_size, bs=bs//2).normalize(imagenet_stats)
以下是错误消息:
IndexError Traceback (most recent call last)
<ipython-input-37-26d6e8cc4006> in <module>()
1 data = ImageDataBunch.from_folder(path_img, fnames, pat, ds_tfms=get_transforms(),
----> 2 size=img_size, bs=bs//2).normalize(imagenet_stats)
6 frames
/usr/local/lib/python3.6/dist-packages/fastai/core.py in index_row(a, idxs)
274 if isinstance(res,(pd.DataFrame,pd.Series)): return res.copy()
275 return res
--> 276 return a[idxs]
277
278 def func_args(func)->bool:
IndexError: index 0 is out of bounds for axis 0 with size 0
我是一个完全的新手,所以道歉,如果这是一个结构不良的问题。谢谢!你知道吗
目前没有回答
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