please, help me.
I have a list with path files as below:
[PosixPath('/home/angelo/Documentos/IA/Fast.ai-v3/nbs/dl1/papagaio/Papagaio_verdadeiro.jpg'),
PosixPath('/home/angelo/Documentos/IA/Fast.ai-v3/nbs/dl1/papagaio/papagaio_amarelo.jpg'),
PosixPath('/home/angelo/Documentos/IA/Fast.ai-v3/nbs/dl1/papagaio/zoom_RACAO_ALIMENTO_NUTROPICA_PAPAGAIO_AVES_PASSAROS1.jpg'),
PosixPath('/home/angelo/Documentos/IA/Fast.ai-v3/nbs/dl1/papagaio/papagaio_ok.jpg'),
PosixPath('/home/angelo/Documentos/IA/Fast.ai-v3/nbs/dl1/papagaio/alx_papagaio_20070327_01_original.jpeg')]
This list was created using get_image_files.
This is a list of images of parrots. Here in Brazil papagaio = parrot.
In order to use the filename for classification in machine learning, I tried to use the following regex:
pat = r'.[^\/.]+.jpg$'
However, after using it in an ImageDataBunch...
data_papagaio = ImageDataBunch.from_name_re(papagaio_path, papagaio_files, pat, ds_tfms=get_transforms(), size=224, bs=bs
).normalize(imagenet_stats)
I received the following error message in return:
IndexError: no such group
And I do not know how to solve it. Can someone help me?
Just for clarification, I'm trying to reproduce lesson 1 from the fast.ai course using some files on my hard drive.
The metod is looking for a capturing group value, you need to set a pair of unescaped parentheses around the file name pattern.
Also, it seems you have both jpg and jpeg, so you need jpe?g, not just jpg.
Use
pat = r'([^/.]+)\.jpe?g$'
See the regex demo