fix accessing options when they are not ready for SwinIR.

def upscale(

        img,

        model,

        tile=opts.SWIN_tile,

        tile_overlap=opts.SWIN_tile_overlap,

        tile=None,

        tile_overlap=None,

        window_size=8,

        scale=4,

):

    tile = tile or opts.SWIN_tile

    tile_overlap = tile_overlap or opts.SWIN_tile_overlap

    img = np.array(img)

    img = img[:, :, ::-1]

    img = np.moveaxis(img, 2, 0) / 255