def __init__(self, i, j, h, w):
        """
        i: Upper pixel coordinate.
        j: Left pixel coordinate.
        h: Height of the cropped image.
        w: Width of the cropped image.
        """
        self.i = i
        self.j = j
        self.h = h
        self.w = w

        i: Upper pixel coordinate.
        j: Left pixel coordinate.
        h: Height of the cropped image.
        w: Width of the cropped image.
        
dataloaders/transforms.py