参考github地址:https://github.com/lonngxiang/character-recognition-fastai
创建一个文件放train数据,格式可以参考,数据后续越多越好
用的是jupter book写的:
%reload_ext autoreload
%autoreload 2
%matplotlib inline
from fastai.vision import *
from fastai.metrics import error_rate
path=Path(r"C:\Users\lonng\Desktop\fastai v3")
path.ls()
path
path_img = path/"ziti"
fnames = get_image_files(path_img)
fnames[:5]
pat = r'ziti/(.*?)-\d+.jpg$'
data = ImageDataBunch.from_name_re(path_img, fnames, pat, ds_tfms=get_transforms(), size=14, bs=6, num_workers=0
).normalize(imagenet_stats)
dat