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from fastai.vision import *
images_path = untar_data(URLs.CARS)
images_path.ls()
[PosixPath('/home/jupyter/.fastai/data/stanford-cars/cars_train'),
 PosixPath('/home/jupyter/.fastai/data/stanford-cars/cars_annos.mat'),
 PosixPath('/home/jupyter/.fastai/data/stanford-cars/cars_test'),
 PosixPath('/home/jupyter/.fastai/data/stanford-cars/car_ims')]
data_src = ImageList.from_folder(images_path/'cars_train').split_none().label_const('cars')
tmfs = get_transforms(
    do_flip=True, 
    max_rotate=10, 
    max_zoom=1.5,
    max_lighting=0.3,
    xtra_tfms=[
        jitter(magnitude=0.01, p=0.5),
        rgb_randomize(channel=0, thresh=0.9, p=0.1),
        rgb_randomize(channel=1, thresh=0.9, p=0.1),
        rgb_randomize(channel=2, thresh=0.9, p=0.1),
    ]
)

data = data_src.transform(tmfs, size=224).databunch()