介绍 cameraManager=(cameraManager) getSystemService (Context.CAMERA_SERVICE);
surfaceHolder=sv.getHolder ();
表面=surfaceHolder.getSurface (); //获取可用的相机列的表
String [] cameraIdList=cameraManager.getCameraIdList (); camera.createCaptureSession (arrays . aslist(表面),新的CameraCaptureSession.StateCallback () {
@Override
公共空间> CaptureRequest。Builder captureRequest=camera.createCaptureRequest (CameraDevice.TEMPLATE_PREVIEW);
captureRequest.addTarget(表面);
captureRequest.set (CaptureRequest。CONTROL_MODE CameraMetadata.CONTROL_MODE_AUTO);
captureRequest.set (CaptureRequest。STATISTICS_FACE_DETECT_MODE getFaceDetectMode ());
session.setRepeatingRequest (captureRequest.build (), captureCallback,新处理程序());
利用Android实现人脸识别并统计人脸数?相信很多没有经验的人对此束手无策,为此本文总结了问题出现的原因和解决方法,通过这篇文章希望你能解决这个问题。
& lt; LinearLayout xmlns: android=癶ttp://schemas.android.com/apk/res/android"
android: layout_width=癴ill_parent"
android: layout_height=癴ill_parent"
android:取向=皏ertical"比;
& lt; SurfaceView
android: id=癅 + id/sv"
android: layout_width=癿atch_parent"
android: layout_height=? dp"
android: layout_weight=?”;/比;
& lt;/LinearLayout>
java
如果(checkSelfPermission (Manifest.permission.CAMERA) !=PackageManager.PERMISSION_GRANTED) {//TODO:考虑//活动# requestPermissions//请求丢失的权限,然后覆盖//公共空>//获取开启相机的相关参数
CameraCharacteristics特点=cameraManager.getCameraCharacteristics (cameraIdList [1]);//可用于判断是否支持人脸检测,以及支持到哪种程度
faceDetectModes=characteristics.get (CameraCharacteristics.STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES);//支持的人脸检测模式
cameraManager。mStateCallback openCamera (cameraIdList [1], null); 利用Android实现人脸识别并统计人脸数
