FaceDetector

Additional

Language
Java
Version
1.0.0 (Jul 12, 2017)
Created
Jul 3, 2017
Updated
Jul 16, 2017
Owner
Fotoapparat
Contributor
Dmitry Zaitsev (dmitry-zaitsev)
1
Activity
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Source code
APK file

Blurb

FaceDetector

Want to detect human faces on a camera preview stream in real time? Well, you came to the right place.

FaceDetector is a library which:

  • detects faces
  • works on Android
  • very simple to use
  • comes with Fotoapparat integration (but you can use it with whatever you like)
  • uses C++ core which can easily be ported to iOS (we have plans for that)

How it works

For simplicity let's assume that you are using Fotoapparat as your camera library. If you don't - plese refer to FaceDetector documentation (it is just 1 method).

Step One

If you would like to display detected faces right on top of camera, set up your layout as following (otherwise skip this step).

<io.fotoapparat.facedetector.view.CameraOverlayLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    <!-- Adjust parameters as you like. But cameraView has to be inside CameraOverlayLayout -->
    <io.fotoapparat.view.CameraView
        android:id="@+id/cameraView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- This view will display detected faces -->
    <io.fotoapparat.facedetector.view.RectanglesView
        android:id="@+id/rectanglesView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:rectanglesColor="@color/colorAccent"
        app:rectanglesStrokeWidth="2dp"/>

</io.fotoapparat.facedetector.view.CameraOverlayLayout>

Step Two

Create FaceDetectorProcessor:

FaceDetectorProcessor processor = FaceDetectorProcessor.with(this)
    .listener(faces -> {
        rectanglesView.setRectangles(faces);  // (Optional) Show detected faces on the view.
        
        // ... or do whatever you want with the result
    })
    .build()

Step Three

Attach it as processor to Fotoapparat

Fotoapparat.with(this)
    .frameProcessor(processor)
    // the rest of configuration

And you are good to go!

Set up

Add dependency to your build.grade

repositories {
    maven { 
        url  "http://dl.bintray.com/fotoapparat/fotoapparat" 
    }
}

compile 'io.fotoapparat:facedetector:1.0.0'

// If you are using Fotoapparat add this one as well
compile 'io.fotoapparat.fotoapparat:library:1.1.0'

Contact us

Impressed? We are actually open for side projects. If you want some particular computer vision algorithm (document recognition? photo processing?), drop us a line at fotoapparat.team@gmail.com.

License

Copyright 2017 Fotoapparat

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.