class_docstr: Module that calculates Difference-of-Gaussians blobs.
  
  See
  :func: `~kornia.feature.dog_response` for details.
code: def __init__(self) -> None:
      super().__init__()
  
imports: from typing import Optional, Union
  import torch
  from kornia.core import Module, Tensor, tensor
  from kornia.core.check import KORNIA_CHECK_SHAPE
  from kornia.filters import gaussian_blur2d, spatial_gradient
label_desc: Use image node_id 1 to create a new BlobDoG object from inherited base classes: Module with example: obj = BlobDoG()