Created
August 9, 2019 23:36
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extract features from the vgg19 network
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| def get_features(image, model, layers=None): | |
| """ Run an image forward through a model and get the features for | |
| a set of layers. Default layers are for VGGNet matching Gatys et al (2016) | |
| """ | |
| ## Need the layers for the content and style representations of an image | |
| if layers is None: | |
| layers = {'0': 'conv1_1', | |
| '5': 'conv2_1', | |
| '10': 'conv3_1', | |
| '19': 'conv4_1', | |
| '21': 'conv4_2', ## content representation | |
| '28': 'conv5_1'} | |
| features = {} | |
| x = image | |
| # model._modules is a dictionary holding each module in the model | |
| for name, layer in model._modules.items(): | |
| x = layer(x) | |
| if name in layers: | |
| features[layers[name]] = x | |
| return features |
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