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"""
Copyright (C) 2019 NVIDIA Corporation. All rights reserved.
Licensed under the CC BY-NC-SA 4.0 license (https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).
"""
import torchvision.transforms as transforms
from PIL import Image
def __scale_width(img, target_width, method=Image.BICUBIC):
ow, oh = img.size
if (ow == target_width):
return img
w = target_width
h = int(target_width * oh / ow)
return img.resize((w, h), method)
def get_transform(opt, method=Image.BICUBIC, normalize=True):
transform_list = []
transform_list.append(transforms.Lambda(lambda img: __scale_width(img, opt['load_size'], method)))
transform_list += [transforms.ToTensor()]
if normalize:
transform_list += [transforms.Normalize((0.5, 0.5, 0.5), (0.5, 0.5, 0.5))]
return transforms.Compose(transform_list)
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