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Built-In Pretrained Networks

Load built-in pretrained networks and perform transfer learning

Deep Learning Toolbox™ provides several pretrained networks suitable for transfer learning. Transfer learning is the process of taking a pretrained deep learning network and fine-tuning it to learn a new task. Using transfer learning is usually faster and easier than training a network from scratch. You can quickly transfer learned features to a new task using a smaller amount of data. To explore the available pretrained networks, use Deep Network Designer. For more information, see Pretrained Deep Neural Networks.

Apps

Deep Network Designer

Design, visualize, and train deep learning networks

Functions

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Pretrained Networks

`squeezenet`	SqueezeNet convolutional neural network
`googlenet`	GoogLeNet convolutional neural network
`inceptionv3`	Inception-v3 convolutional neural network
`densenet201`	DenseNet-201 convolutional neural network
`mobilenetv2`	MobileNet-v2 convolutional neural network (Since R2019a)
`resnet18`	ResNet-18 convolutional neural network
`resnet50`	ResNet-50 convolutional neural network
`resnet101`	ResNet-101 convolutional neural network
`xception`	Xception convolutional neural network (Since R2019a)
`inceptionresnetv2`	Pretrained Inception-ResNet-v2 convolutional neural network
`nasnetlarge`	Pretrained NASNet-Large convolutional neural network (Since R2019a)
`nasnetmobile`	Pretrained NASNet-Mobile convolutional neural network (Since R2019a)
`shufflenet`	Pretrained ShuffleNet convolutional neural network (Since R2019a)
`darknet19`	DarkNet-19 convolutional neural network (Since R2020a)
`darknet53`	DarkNet-53 convolutional neural network (Since R2020a)
`efficientnetb0`	EfficientNet-b0 convolutional neural network (Since R2020b)
`alexnet`	AlexNet convolutional neural network
`vgg16`	VGG-16 convolutional neural network
`vgg19`	VGG-19 convolutional neural network

Topics

Classify Webcam Images Using Deep Learning
This example shows how to classify images from a webcam in real time using the pretrained deep convolutional neural network GoogLeNet.
Train Deep Learning Network to Classify New Images
This example shows how to use transfer learning to retrain a convolutional neural network to classify a new set of images.
Transfer Learning Using Pretrained Network
This example shows how to fine-tune a pretrained GoogLeNet convolutional neural network to perform classification on a new collection of images.
Pretrained Deep Neural Networks
Learn how to download and use pretrained convolutional neural networks for classification, transfer learning and feature extraction.
Deep Learning in MATLAB
Discover deep learning capabilities in MATLAB^® using convolutional neural networks for classification and regression, including pretrained networks and transfer learning, and training on GPUs, CPUs, clusters, and clouds.
Deep Learning Tips and Tricks
Learn how to improve the accuracy of deep learning networks.

Related Information

MATLAB Deep Learning Model Hub

Featured Examples

Classify Image Using GoogLeNet

Classify an image using the pretrained deep convolutional neural network GoogLeNet.

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Transfer Learning with Deep Network Designer

Interactively fine-tune a pretrained deep learning network to learn a new image classification task.

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Extract Image Features Using Pretrained Network

Extract learned image features from a pretrained convolutional neural network and use those features to train an image classifier. Feature extraction is the easiest and fastest way to use the representational power of pretrained deep networks. For example, you can train a support vector machine (SVM) using fitcecoc (Statistics and Machine Learning Toolbox™) on the extracted features. Because feature extraction only requires a single pass through the data, it is a good starting point if you do not have a GPU to accelerate network training with.

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Classify Images in Simulink Using GoogLeNet

Classify an image in Simulink® using the Image Classifier block. The example uses the pretrained deep convolutional neural network GoogLeNet to perform the classification.

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