This is tensorflow version of demo for Grad-CAM. I used vgg16 for demo because this model is very popular CNN model. However grad-cam can be used with any CNN model. Just modify convolution layer in my demo code.

See python notebook to see demo of this repository.

To use the VGG networks in this demo, the npy files for VGG16 NPY has to be downloaded.

Grad-CAM: Why did you say that? Visual Explanations from Deep Networks via Gradient-based Localization
Ramprasaath R. Selvaraju, Abhishek Das, Ramakrishna Vedantam, Michael Cogswell, Devi Parikh, Dhruv Batra
https://arxiv.org/abs/1610.02391

Thanks for the awesome machine learning commuity for providing many building blocks.

https://github.com/ramprs/grad-cam

https://github.com/machrisaa/tensorflow-vgg

https://github.com/jacobgil/keras-grad-cam

https://github.com/Ankush96/grad-cam.tensorflow

https://gist.github.com/falcondai/561d5eec7fed9ebf48751d124a77b087

https://github.com/Lasagne/Recipes/blob/master/examples/Saliency%20Maps%20and%20Guided%20Backpropagation.ipynb