image.py 文件源码

def get_transform(resize_crop='resize_and_crop', flip=True,
                  loadSize=286, fineSize=256):
    transform_list = []
    if resize_crop == 'resize_and_crop':
        osize = [loadSize, loadSize]
        transform_list.append(transforms.Resize(osize, Image.BICUBIC))
        transform_list.append(transforms.RandomCrop(fineSize))
    elif resize_crop == 'crop':
        transform_list.append(transforms.RandomCrop(fineSize))
    elif resize_crop == 'scale_width':
        transform_list.append(transforms.Lambda(
            lambda img: __scale_width(img, fineSize)))
    elif resize_crop == 'scale_width_and_crop':
        transform_list.append(transforms.Lambda(
            lambda img: __scale_width(img, loadSize)))
        transform_list.append(transforms.RandomCrop(fineSize))

    if flip:
        transform_list.append(transforms.RandomHorizontalFlip())

    transform_list += [transforms.ToTensor(),
                       transforms.Normalize((0.5, 0.5, 0.5),
                                            (0.5, 0.5, 0.5))]
    return transforms.Compose(transform_list)