An implementation of Score-CAM with keras (tf.keras).

The following methods are compared.

• Grad-CAM
• Grad-CAM++
• Score-CAM
• Faster-Score-CAM (faster version of Score-CAM)

In addition, the followings are contained.

• Visualization of anomalous area for DAGM dataset
• Sample code for applying Score-CAM to your model.

Blog post: Qiita

We thought that several channels were dominant in generating the final heat map. Faster-Score-CAM adds the processing of “use only channels with large variances as mask images” to Score-CAM. (max_N = -1 is the original Score-CAM).

When using VGG16, Faster-Score-CAM is about 10 times faster than Score-CAM.

• Python >= 3.6
• tensorflow >= 2.0

See Score-CAM.ipynb.