def deepdream(self, img_path, layer, filter_idx, lr=.1, num_iter=20,
figsize=(4, 4), title='DeepDream', return_output=False):
"""Creates DeepDream.
It applies the optimization on the image provided. The image is loaded
and made into a torch.Tensor that is compatible as the input to the
network.
Read the original blog post by Google for more information on
`DeepDream <https://ai.googleblog.com/2015/06/inceptionism-going-deeper-into-neural.html>`_.
Args:
img_path (str): A path to the image you want to apply DeepDream on
layer (torch.nn.modules.conv.Conv2d): The target Conv2d layer from
which the filter to be chosen, based on `filter_idx`.
filter_idx (int): The index of the target filter.
lr (float, optional, default=.1): The step size of optimization.
num_iter (int, optional, default=30): The number of iteration for
the gradient ascent operation.
figsize (tuple, optional, default=(4, 4)): The size of the plot.
Relevant in case 1 above.
title (str, optional default='Conv2d'): The title of the plot.
return_output (bool, optional, default=False): Returns the
output(s) of optimization if set to True.
Returns:
output (list of torch.Tensor): With dimentions
:math:`(num_iter, C, H, W)`. The size of the image is
determined by `img_size` attribute which defaults to 224.
""" # noqa
input_ = apply_transforms(load_image(img_path), self.img_size)
self._lr = lr
output = self.optimize(layer, filter_idx, input_, num_iter=num_iter)
plt.figure(figsize=figsize)
plt.axis('off')
plt.title(title)
plt.imshow(format_for_plotting(
standardize_and_clip(output[-1],
saturation=0.15,
brightness=0.7))); # noqa
if return_output:
return output
def visualise_cnn(model_name, image, class_label, model_path=None, title=None):
if model_path is None:
model = get_model(model_name)
else:
model = get_model(model_name)
model = load_model(model, model_path)
model.eval()
backprop = Backprop(model)
# Transform the input image to a tensor
img = apply_transforms(image)
# Set a target class from ImageNet task: 24 in case of great gray owl
imagenet = ImageNetIndex()
target_class = imagenet[class_label]
# Ready to roll!
backprop.visualize(img, target_class, guided=True, title=title)
def get_type(path='./owl.jpg'):
init_model()
global error
if error:
return 'unknown'
try:
image = load_image(path)
o = apply_transforms(image)
outputs = model(o)
result = int(torch.max(outputs.data, 1)[1])
sftm = torch.nn.functional.softmax(outputs[0], dim=0)
return tag[result]
except:
return 'unknown'
def saliency():
"""### 1. Load an image"""
buho = 'images/great_grey_owl.jpg'
di1 = 'images/1.png'
image = load_image(buho)
# image = load_image(buho)
# plt.imshow(image)
# plt.title('Original image'+str(type(image)))
# plt.axis('off');
# plt.show()
"""### 2. Load a pre-trained Model"""
model = models.alexnet(pretrained=True)
# model = torch.load('/content/alexnet-frames-Finetuned:False-1di-tempMaxPool-OnPlateau.tar')
"""### 3. Create an instance of Backprop with the model"""
backprop = Backprop(model)
"""### 4. Visualize saliency maps"""
# Transform the input image to a tensor
owl = apply_transforms(image)
# print(owl.size()) #torch.Size([/1, 3, 224, 224])
# input_size = 224
# data_transforms = createTransforms(input_size)
# owl = data_transforms['test'](image)
# owl = owl.unsqueeze(dim=0)
# owl = owl.unsqueeze(dim=0)
# owl = owl.permute(1, 0, 2, 3, 4)
# print(owl.size())
# Set a target class from ImageNet task: 24 in case of great gray owl
target_class = 24
# Ready to roll!
backprop.visualize(owl, target_class=target_class, guided=True, use_gpu=True)
def test_denormalize_tensor(image):
transformed = apply_transforms(image)
denormalized = denormalize(transformed)
assert denormalized.shape == transformed.shape
assert denormalized.min() >= 0.0 and denormalized.max() <= 1.0
def test_crop_to_custom_size(image):
transformed = apply_transforms(image, 299)
assert transformed.shape == (1, 3, 299, 299)
def test_crop_to_224_by_default(image):
transformed = apply_transforms(image)
assert transformed.shape == (1, 3, 224, 224)
def test_transform_image_to_tensor(image):
transformed = apply_transforms(image)
assert isinstance(transformed, torch.Tensor)
NIH_CXR_BASE = CXR_BASE.joinpath("nih/v1").resolve()
test_df = pd.read_csv("~/cxr-jingyi/Age/NIH_test_2500.csv")
path1 = test_df.iloc[0]['path']
path1 = NIH_CXR_BASE.joinpath(path1).resolve()
import matplotlib.pyplot as plt
from flashtorch.utils import apply_transforms, load_image
from flashtorch.saliency import Backprop
image = load_image(str(path1))
plt.imshow(image)
model = MobileNet(16)
checkpoint = torch.load(
'/home/jingyi/cxr-jingyi/Age/result/supervised/model_best.pth.tar')
model.load_state_dict(checkpoint['state_dict'])
backprop = Backprop(model)
# Transform the input image to a tensor
owl = apply_transforms(image)
# Set a target class from ImageNet task: 24 in case of great gray owl
target_class = 16
# Ready to roll!
backprop.visualize(owl, target_class, guided=True)
import torchvision.models as models
from flashtorch.saliency import Backprop
from CNN.loadPretrainedCNN2 import VGG16_NoSoftmax_OneChannel
import matplotlib.pyplot as plt
import io
from PIL import Image
C=preprossingPipeline(BC_datapath=r"/Users/villadsstokbro/Dokumenter/DTU/KID/3. semester/Fagprojekt/BrainCapture/dataEEG",mac=True)
path1=r'/Volumes/B/spectograms_rgb'
N=2
windows, labels, filenames, window_idx_full = C.make_label_cnn(make_from_filenames=None, quality=None, is_usable=None, max_files=N, max_windows = 10,
path=path1, seed=0, ch_to_include=range(1))
img=windows[0].unsqueeze(0)
img=load_image('Ricardo_rip.jpg')
img= apply_transforms(img,size=224)
img.detach().requires_grad_(requires_grad=True)
#window = torch.load('/Volumes/B/spectograms_rgb/sbs2data_2018_08_30_19_39_35_288 part 2.edf.pt')
#img=window.detach().requires_grad_(requires_grad=True)[0,0,:,:].unsqueeze(0)
def visualize_helper(model_module, tensor=img, k=854):
model = model_module(pretrained=True).float()
backprop = Backprop(model)
backprop.visualize(tensor, k, guided=True)
model=models.vgg16(pretrained=True)
model.eval()
torch.argmax(model(img))
visualize_helper(models.vgg16,tensor=img)
plt.show()
import matplotlib.pyplot as plt
import torchvision.models as models
from flashtorch.utils import load_image
from flashtorch.saliency import Backprop
from flashtorch.utils import apply_transforms
image = load_image("G:\EEGNet/test/test.jpg")
plt.imshow(image)
net = models.vgg16(pretrained=1)
backprop = Backprop(net)
input_ = apply_transforms(image)
target_class = 24
backprop.visualize(input_, target_class, guided=True)
pass
else:
spec = C.get_spectrogram(file)
j = 0
for window_value in spec.keys():
if window_value == 'annotations':
break
i = 0
for channel in spec[window_value].keys():
if i == 0:
a = np.array(spec[window_value][channel])
buf = io.BytesIO()
plt.imsave(buf, a, format='jpg')
buf.seek(0)
image = load_image(buf)
img = apply_transforms(image)
imgs = img
buf.close()
else:
a = np.array(spec[window_value][channel])
buf = io.BytesIO()
plt.imsave(buf, a, format='jpg')
buf.seek(0)
image = load_image(buf)
img = apply_transforms(image)
imgs = torch.cat((imgs, img), axis=0)
buf.close()
i += 1
if j == 0:
window_values = imgs.resize(1, 14, 3, 224, 224)
else:
import os # NOQA: E402
os.environ["CUDA_VISIBLE_DEVICES"] = "1" # NOQA: E402
import matplotlib.pyplot as plt
import torchvision.models as models
from flashtorch.utils import apply_transforms, load_image
from flashtorch.saliency import Backprop
### 1. Load a pre-trained Model
# model = models.alexnet(pretrained=True)
model = models.vgg16(pretrained=True)
### 2. Create an instance of Backprop with the model
backprop = Backprop(model)
path = './figure'
path_names = os.listdir(path)
for i in range(len(path_names)):
peacock = apply_transforms(load_image(os.path.join(path, path_names[i])))
backprop.visualize(peacock, None, guided=True, use_gpu=True)
plt.show()