23 lines
617 B
Python
23 lines
617 B
Python
|
import numpy as np
|
||
|
|
from pytorch_grad_cam.base_cam import BaseCAM
|
||
|
|
|
||
|
|
|
||
|
|
class GradCAM(BaseCAM):
|
||
|
|
def __init__(self, model, target_layers, use_cuda=False,
|
||
|
|
reshape_transform=None):
|
||
|
|
super(
|
||
|
|
GradCAM,
|
||
|
|
self).__init__(
|
||
|
|
model,
|
||
|
|
target_layers,
|
||
|
|
use_cuda,
|
||
|
|
reshape_transform)
|
||
|
|
|
||
|
|
def get_cam_weights(self,
|
||
|
|
input_tensor,
|
||
|
|
target_layer,
|
||
|
|
target_category,
|
||
|
|
activations,
|
||
|
|
grads):
|
||
|
|
return np.mean(grads, axis=(2, 3))
|