tensorflow2_cpp

Sample example how to load a Tensorflow Object detection API v2 model and serve prediction in C++

Accompanying Medium post here

Build and installation

The current config uses the following dependencies (based on Tensorflow tested build). Check out build from source configs for more details.

1. Tensorflow 2.3.0
2. CUDA 10.1
3. cuDNN 7.6
4. Bazel 3.1.0
5. Protobuf 3.9.2
6. OpenCV 4.3.0 (required only for the example)

Build Docker image

docker build . -t boraraktim/tensorflow2_cpp

Compile source

1. Download the object detection model from TF object detection model zoo. We use the efficientdet_d3_coco17_tpu-32 for this example and unpack it.

2. Start container and mount the model volume

docker run --gpus all -it --rm -v efficientdet_d3_coco17_tpu-32/:/object_detection/models/ boraraktim/tensorflow2_cpp

directory structure

-|/object_detection/models/
    -|efficientdet_d3_coco17_tpu-32
    	|--saved_model
            |--assets/
            |--saved_model.pb
            |-- ...

3. Build the project using cmake

root@8122f3e1dc5b:/object_detection# mkdir build
root@8122f3e1dc5b:/object_detection# cd build && cmake ..
root@8122f3e1dc5b:/object_detection/build# make

Predict

./get_prediction <path/to/saved_model> <path/to/image.jpg> <path/to/output.jpg>

Example,

root@8122f3e1dc5b:/object_detection/build# ./get_prediction ../models/efficientdet_d3_coco17_tpu-32/saved_model/ ../test-image-anoir-chafik-2_3c4dIFYFU-unsplash.jpg ../sample_prediction.jpg

Image from Unspalsh