models/Interpolation/nearest_neighbor.py

from PIL import Image
from torchvision import transforms

def NearestNeighbor_for_deployment(lr_image):
    w, h = lr_image.size
    sr_image = transforms.functional.resize(lr_image, size=(h*4, w*4),interpolation=transforms.InterpolationMode.NEAREST,antialias=False)
    return sr_image