Face Detection for Android

Collection of Android face detection libraries for Ver-ID SDK

All libraries in this collection implement the FaceDetection interface from the Ver-ID common types library. The interface conformance makes the libraries available to the Ver-ID SDK's face capture.

Installation

1. Add the following to your project's settings.gradle.kts:

   dependencyResolutionManagement {
       repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
       repositories {
           google()
           mavenCentral()
           maven {
               url = uri("https://maven.pkg.github.com/AppliedRecognition/Ver-ID-Releases-Android")
           }
       }
   }

2. Add the following dependency in your build.gradle.kts file:

   // BOM
   implementation(platform("com.appliedrec.verid3:ver-id-bom:2025-06-04"))
   // Serialization library for converting Bitmap to Image
   implementation("com.appliedrec.verid:common-serialization")
   // Choose between the two modules:
   implementation("com.appliedrec.verid:face-detection-mp") // For simple face detector
   implementation("com.appliedrec.verid:face-landmark-detection-mp") // For face landmark detector

Usage

All the libraries in this project implement the FaceDetection interface. The interface contains a single method detectFacesInImage.

Example: detecting a face in image using MediaPipe face detection wrapper

import android.content.Context
import android.graphics.Bitmap
import com.appliedrec.verid3.common.Face
import com.appliedrec.verid3.common.Image
import com.appliedrec.verid3.common.serialization.fromBitmap
import com.appliedrec.verid3.facedetection.mp.FaceDetectionMediaPipe

suspend fun detectFaceInImage(context: Context, bitmap: Bitmap): Face? {
  // Create face detection instance
  val faceDetection = FaceDetectionMediaPipe(context)
  // Convert the bitmap to a Ver-ID image
  val image = Image.fromBitmap(bitmap)
  // Set the maximum number of faces to detect
  val limit = 1
  // Detect face
  return faceDetection.detectFacesInImage(image, limit).firstOrNull()
}