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MTCNN TensorFlow C++ Implementation

Build

Install opencv

  • For Unix user
brew install opencv
brew install pkg-config

Tensorflow build

  • Flow this !tutorial to build tensorflow c api. A brief:
git clone https://github.com/tensorflow/tensorflow.git
cd tensorflow
bazel build --config=opt //tensorflow/tools/lib_package:libtensorflow
  • Copy file bazel-bin/tensorflow/tools/lib_package/libtensorflow.tar.gz to mtcnn-tf directory and unzip it
mkdir -p libs
cd libs
(Copy libtensorflow.tar.gz to this directory)
tar -xvzf libtensorflow.tar.gz

Compile by make

make -j4

Run

Test detect image

./bin/detect_face --input test.jpg --output test-detected.jpg

Test camera

./bin/camera_detect

tensorflow docs

  • TF_Session : run a tensor to export output ( the real value )
  • TF_Graph : represent dataflow graph
  • TF_Status : Denotes success or failure of a call in Tensorflow.

opencv docs

  • cv::Mat : image stored
  • frame.size() shape of Mat ( cout << frame.size() << endl; )
  • cv::imread(fname [,flag]) : read image from file and Flags specifying the color type of a loaded image
  • cv::convertTo(img,CV_32FC3) : convert type of Mat to 32-bit floating-point numbers
  • cv::cvtColor(working_img,working_img, cv::COLOR_BGR2RGB);