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Given an image of a dog, our algorithm will identify an estimate of the canine’s breed. If supplied an image of a human, the code will identify the resembling dog breed.

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Dog_Breed Classifier

In this project, I construct a convolutional neural network (CNN) that may classify the breed of a dog from any user-supplied image.

If the picture is a human, the algorithm provides an estimation of the most resembling dog breed for her/him.

We used "Xception bottleneck features" for transfer learning to create a CNN that can identify dog breed from images. Our CNN must attained 84.5694% accuracy on the test set.

Project Overview

Welcome to the Convolutional Neural Networks (CNN) project in the AI Nanodegree! In this project, you will learn how to build a pipeline that can be used within a web or mobile app to process real-world, user-supplied images. Given an image of a dog, your algorithm will identify an estimate of the canine’s breed. If supplied an image of a human, the code will identify the resembling dog breed.

Along with exploring state-of-the-art CNN models for classification, you will make important design decisions about the user experience for your app. Our goal is that by completing this lab, you understand the challenges involved in piecing together a series of models designed to perform various tasks in a data processing pipeline. Each model has its strengths and weaknesses, and engineering a real-world application often involves solving many problems without a perfect answer. Your imperfect solution will nonetheless create a fun user experience!

Project Instructions

Instructions

  1. Clone the repository and navigate to the downloaded folder.
git clone https://github.com/udacity/dog-project.git
cd dog-project
  1. Download the dog dataset. Unzip the folder and place it in the repo, at location path/to/dog-project/dogImages.

  2. Download the human dataset. Unzip the folder and place it in the repo, at location path/to/dog-project/lfw. If you are using a Windows machine, you are encouraged to use 7zip to extract the folder.

  3. Donwload the VGG-16 bottleneck features for the dog dataset. Place it in the repo, at location path/to/dog-project/bottleneck_features.

  4. (Optional) If you plan to install TensorFlow with GPU support on your local machine, follow the guide to install the necessary NVIDIA software on your system. If you are using an EC2 GPU instance, you can skip this step.

  5. (Optional) If you are running the project on your local machine (and not using AWS), create (and activate) a new environment.

    • Linux (to install with GPU support, change requirements/dog-linux.yml to requirements/dog-linux-gpu.yml):
    conda env create -f requirements/dog-linux.yml
    source activate dog-project
    
    • Mac (to install with GPU support, change requirements/dog-mac.yml to requirements/dog-mac-gpu.yml):
    conda env create -f requirements/dog-mac.yml
    source activate dog-project
    

    NOTE: Some Mac users may need to install a different version of OpenCV

    conda install --channel https://conda.anaconda.org/menpo opencv3
    
    • Windows (to install with GPU support, change requirements/dog-windows.yml to requirements/dog-windows-gpu.yml):
    conda env create -f requirements/dog-windows.yml
    activate dog-project
    
  6. (Optional) If you are running the project on your local machine (and not using AWS) and Step 6 throws errors, try this alternative step to create your environment.

    • Linux or Mac (to install with GPU support, change requirements/requirements.txt to requirements/requirements-gpu.txt):
    conda create --name dog-project python=3.5
    source activate dog-project
    pip install -r requirements/requirements.txt
    

    NOTE: Some Mac users may need to install a different version of OpenCV

    conda install --channel https://conda.anaconda.org/menpo opencv3
    
    • Windows (to install with GPU support, change requirements/requirements.txt to requirements/requirements-gpu.txt):
    conda create --name dog-project python=3.5
    activate dog-project
    pip install -r requirements/requirements.txt
    
  7. (Optional) If you are using AWS, install Tensorflow.

sudo python3 -m pip install -r requirements/requirements-gpu.txt
  1. Switch Keras backend to TensorFlow.

    • Linux or Mac:
       KERAS_BACKEND=tensorflow python -c "from keras import backend"
      
    • Windows:
       set KERAS_BACKEND=tensorflow
       python -c "from keras import backend"
      
  2. (Optional) If you are running the project on your local machine (and not using AWS), create an IPython kernel for the dog-project environment.

python -m ipykernel install --user --name dog-project --display-name "dog-project"
  1. Open the notebook.
jupyter notebook dog_app.ipynb
  1. (Optional) If you are running the project on your local machine (and not using AWS), before running code, change the kernel to match the dog-project environment by using the drop-down menu (Kernel > Change kernel > dog-project). Then, follow the instructions in the notebook.

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Given an image of a dog, our algorithm will identify an estimate of the canine’s breed. If supplied an image of a human, the code will identify the resembling dog breed.

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