text: Title: Support for LayerCAM
  Body: Our paper "LayerCAM: Exploring Hierarchical Class Activation Maps for Localization" is accepted by TIP recently, which can visualize the class activation maps from any cnn layer of an off-the-shelf network. Could you add our method to your popular repository for more people to try this method? Our method is a simple modification of Grad-CAM. It should easy to implement. Here is the [paper](https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9462463) and [code](https://github.com/PengtaoJiang/LayerCAM). Hope for your reply.