上海优秀网站设计,阿里巴巴网站建设的背景,重庆网站的建设,网站推广推广title: Android原生人脸识别Camera2FaceDetector 快速实现人脸跟踪categories:Androidtags:人脸识别FaceDetectorCamera2date: 2020-05-27 14:02:13本篇主要介绍Android原生Api人脸检测FaceDetector的使用#xff0c;该方法检测人脸可以做到的是#xff0c;检测到屏幕有无人脸…title: Android原生人脸识别Camera2FaceDetector 快速实现人脸跟踪categories:Androidtags:人脸识别FaceDetectorCamera2date: 2020-05-27 14:02:13本篇主要介绍Android原生Api人脸检测FaceDetector的使用该方法检测人脸可以做到的是检测到屏幕有无人脸有多少个人脸人脸的双眼眉心位置2d坐标双眼间距但是本人测到该方法的坑检测有无人脸确实好用但是如果要精确的测量人脸位置距离等会有偏差毕竟是2d坐标对现实定位不准确我感觉可以这样理解然后大家如果要实现该功能的时候如果这些不够用就不用考虑该方法了。废话不多说实现开始实现1.首先可以实现一个自定义view用来在屏幕上画方框class FaceView : View {lateinit var mPaint: Paintprivate var mCorlor #42ed45private var mFaces: ArrayList? nullconstructor(context: Context) : super(context) {init()}constructor(context: Context, attrs: AttributeSet?) : super(context, attrs) {init()}constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {init()}private fun init() {mPaint Paint()mPaint.color Color.parseColor(mCorlor)mPaint.style Paint.Style.STROKEmPaint.strokeWidth TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 3f, context.resources.displayMetrics)mPaint.isAntiAlias true}override fun onDraw(canvas: Canvas) {super.onDraw(canvas)mFaces?.let {for (face in it) {canvas.drawRect(face, mPaint)}}}fun setFaces(faces: ArrayList) {this.mFaces facesinvalidate()}}imageUtil用来处理返回的基础格式/*** Author: Sar_Wang* Date: 2020/5/11 3:40 PM* Description:*/public class ImageUtil {/*** 将Y:U:V 4:2:2的数据转换为nv21** param y Y 数据* param u U 数据* param v V 数据* param nv21 生成的nv21需要预先分配内存* param stride 步长* param height 图像高度*/public static void yuv422ToYuv420sp(byte[] y, byte[] u, byte[] v, byte[] nv21, int stride, int height) {System.arraycopy(y, 0, nv21, 0, y.length);// 注意若length值为 y.length * 3 / 2 会有数组越界的风险需使用真实数据长度计算int length y.length u.length / 2 v.length / 2;int uIndex 0, vIndex 0;for (int i stride * height; i length; i 2) {nv21[i] v[vIndex];nv21[i 1] u[uIndex];vIndex 2;uIndex 2;}}/*** 将Y:U:V 4:1:1的数据转换为nv21** param y Y 数据* param u U 数据* param v V 数据* param nv21 生成的nv21需要预先分配内存* param stride 步长* param height 图像高度*/public static void yuv420ToYuv420sp(byte[] y, byte[] u, byte[] v, byte[] nv21, int stride, int height) {System.arraycopy(y, 0, nv21, 0, y.length);// 注意若length值为 y.length * 3 / 2 会有数组越界的风险需使用真实数据长度计算int length y.length u.length v.length;int uIndex 0, vIndex 0;for (int i stride * height; i length; i) {nv21[i] v[vIndex];nv21[i 1] u[uIndex];}}}然后是调用相机的activity的布局xmlns:apphttp://schemas.android.com/apk/res-autoxmlns:toolshttp://schemas.android.com/toolsandroid:layout_widthmatch_parentandroid:layout_heightmatch_parentandroid:idid/textureViewandroid:layout_widthmatch_parentandroid:layout_heightmatch_parent/android:idid/switch_Cameraandroid:layout_gravityend|bottomandroid:layout_marginBottom90dpandroid:layout_marginEnd40dpandroid:text切换摄像头android:layout_widthwrap_contentandroid:layout_heightwrap_content /android:idid/faceViewandroid:layout_widthmatch_parentandroid:layout_heightmatch_parent/然后这里剩的麻烦用了一个大神写的相机辅助类感兴趣的可以看一下源码public class Camera2Helper {private static final String TAG Camera2Helper;private Point maxPreviewSize;private Point minPreviewSize;public static final String CAMERA_ID_FRONT 1;public static final String CAMERA_ID_BACK 0;private String mCameraId;private String specificCameraId;private Camera2Listener camera2Listener;private TextureView mTextureView;private int rotation;private Point previewViewSize;private Point specificPreviewSize;private boolean isMirror;private Context context;private boolean mCalibrated;private boolean mIsVertical true;/*** A {link CameraCaptureSession } for camera preview.*/private CameraCaptureSession mCaptureSession;/*** A reference to the opened {link CameraDevice}.*/private CameraDevice mCameraDevice;private Size mPreviewSize;private Camera2Helper(Camera2Helper.Builder builder) {mTextureView builder.previewDisplayView;specificCameraId builder.specificCameraId;camera2Listener builder.camera2Listener;rotation builder.rotation;previewViewSize builder.previewViewSize;specificPreviewSize builder.previewSize;maxPreviewSize builder.maxPreviewSize;minPreviewSize builder.minPreviewSize;isMirror builder.isMirror;context builder.context;if (isMirror) {mTextureView.setScaleX(-1);}}public void setConfiguration(boolean val) {mIsVertical val;}public void switchCamera() {if (CAMERA_ID_BACK.equals(mCameraId)) {specificCameraId CAMERA_ID_FRONT;} else if (CAMERA_ID_FRONT.equals(mCameraId)) {specificCameraId CAMERA_ID_BACK;}stop();start();}private int getCameraOri(int rotation, String cameraId) {int degrees rotation * 90;switch (rotation) {case Surface.ROTATION_0:degrees 0;break;case Surface.ROTATION_90:degrees 90;break;case Surface.ROTATION_180:degrees 180;break;case Surface.ROTATION_270:degrees 270;break;default:break;}int result;if (CAMERA_ID_FRONT.equals(cameraId)) {result (mSensorOrientation degrees) % 360;result (360 - result) % 360;} else {result (mSensorOrientation - degrees 360) % 360;}Log.i(TAG, getCameraOri: rotation result mSensorOrientation);return result;}private final TextureView.SurfaceTextureListener mSurfaceTextureListener new TextureView.SurfaceTextureListener() {Overridepublic void onSurfaceTextureAvailable(SurfaceTexture texture, int width, int height) {Log.i(TAG, onSurfaceTextureAvailable: );openCamera();}Overridepublic void onSurfaceTextureSizeChanged(SurfaceTexture texture, int width, int height) {Log.i(TAG, onSurfaceTextureSizeChanged: );configureTransform(width, height);}Overridepublic boolean onSurfaceTextureDestroyed(SurfaceTexture texture) {Log.i(TAG, onSurfaceTextureDestroyed: );return true;}Overridepublic void onSurfaceTextureUpdated(SurfaceTexture texture) {}};private CameraDevice.StateCallback mDeviceStateCallback new CameraDevice.StateCallback() {Overridepublic void onOpened(NonNull CameraDevice cameraDevice) {Log.i(TAG, onOpened: );// This method is called when the camera is opened. We start camera preview here.mCameraOpenCloseLock.release();mCameraDevice cameraDevice;createCameraPreviewSession();if (camera2Listener ! null) {camera2Listener.onCameraOpened(cameraDevice, mCameraId, mPreviewSize, getCameraOri(rotation, mCameraId), isMirror);}}Overridepublic void onDisconnected(NonNull CameraDevice cameraDevice) {Log.i(TAG, onDisconnected: );mCameraOpenCloseLock.release();cameraDevice.close();mCameraDevice null;if (camera2Listener ! null) {camera2Listener.onCameraClosed();}}Overridepublic void onError(NonNull CameraDevice cameraDevice, int error) {Log.i(TAG, onError: );mCameraOpenCloseLock.release();cameraDevice.close();mCameraDevice null;if (camera2Listener ! null) {camera2Listener.onCameraError(new Exception(error occurred, code is error));}}};private CameraCaptureSession.StateCallback mCaptureStateCallback new CameraCaptureSession.StateCallback() {Overridepublic void onConfigured(NonNull CameraCaptureSession cameraCaptureSession) {Log.i(TAG, onConfigured: );// The camera is already closedif (null mCameraDevice) {return;}// When the session is ready, we start displaying the preview.mCaptureSession cameraCaptureSession;try {mCaptureSession.setRepeatingRequest(mPreviewRequestBuilder.build(),mCaptureCallBack, mBackgroundHandler);} catch (CameraAccessException e) {e.printStackTrace();}}Overridepublic void onConfigureFailed(NonNull CameraCaptureSession cameraCaptureSession) {Log.i(TAG, onConfigureFailed: );if (camera2Listener ! null) {camera2Listener.onCameraError(new Exception(configureFailed));}}};private CameraCaptureSession.CaptureCallback mCaptureCallBack new CameraCaptureSession.CaptureCallback(){Overridepublic void onCaptureCompleted(NonNull CameraCaptureSession session, NonNull CaptureRequest request, NonNull TotalCaptureResult result) {super.onCaptureCompleted(session, request, result);camera2Listener.onHandleFaces(result);}Overridepublic void onCaptureFailed(NonNull CameraCaptureSession session, NonNull CaptureRequest request, NonNull CaptureFailure failure) {super.onCaptureFailed(session, request, failure);}};/*** An additional thread for running tasks that shouldnt block the UI.*/private HandlerThread mBackgroundThread;/*** A {link Handler} for running tasks in the background.*/private Handler mBackgroundHandler;private ImageReader mImageReader;/*** {link CaptureRequest.Builder} for the camera preview*/private CaptureRequest.Builder mPreviewRequestBuilder;/*** A {link Semaphore} to prevent the app from exiting before closing the camera.*/private Semaphore mCameraOpenCloseLock new Semaphore(1);/*** Orientation of the camera sensor*/private int mSensorOrientation;private Size getBestSupportedSize(List sizes) {Size defaultSize sizes.get(0);Size[] tempSizes sizes.toArray(new Size[0]);Arrays.sort(tempSizes, new Comparator() {Overridepublic int compare(Size o1, Size o2) {if (o1.getWidth() o2.getWidth()) {return -1;} else if (o1.getWidth() o2.getWidth()) {return o1.getHeight() o2.getHeight() ? -1 : 1;} else {return 1;}}});sizes new ArrayList(Arrays.asList(tempSizes));for (int i sizes.size() - 1; i 0; i--) {if (maxPreviewSize ! null) {if (sizes.get(i).getWidth() maxPreviewSize.x || sizes.get(i).getHeight() maxPreviewSize.y) {sizes.remove(i);continue;}}if (minPreviewSize ! null) {if (sizes.get(i).getWidth() minPreviewSize.x || sizes.get(i).getHeight() minPreviewSize.y) {sizes.remove(i);}}}if (sizes.size() 0) {String msg can not find suitable previewSize, now using default;if (camera2Listener ! null) {Log.e(TAG, msg);camera2Listener.onCameraError(new Exception(msg));}return defaultSize;}Size bestSize sizes.get(0);float previewViewRatio;if (previewViewSize ! null) {previewViewRatio (float) previewViewSize.x / (float) previewViewSize.y;} else {previewViewRatio (float) bestSize.getWidth() / (float) bestSize.getHeight();}if (previewViewRatio 1) {previewViewRatio 1 / previewViewRatio;}for (Size s : sizes) {if (specificPreviewSize ! null specificPreviewSize.x s.getWidth() specificPreviewSize.y s.getHeight()) {return s;}if (Math.abs((s.getHeight() / (float) s.getWidth()) - previewViewRatio) Math.abs(bestSize.getHeight() / (float) bestSize.getWidth() - previewViewRatio)) {bestSize s;}}return bestSize;}public synchronized void start() {if (mCameraDevice ! null) {return;}startBackgroundThread();// When the screen is turned off and turned back on, the SurfaceTexture is already// available, and onSurfaceTextureAvailable will not be called. In that case, we can open// a camera and start preview from here (otherwise, we wait until the surface is ready in// the SurfaceTextureListener).if (mTextureView.isAvailable()) {openCamera();} else {mTextureView.setSurfaceTextureListener(mSurfaceTextureListener);}}public synchronized void stop() {if (mCameraDevice null) {return;}closeCamera();stopBackgroundThread();}public void release() {stop();mTextureView null;camera2Listener null;context null;}private void setUpCameraOutputs(CameraManager cameraManager) {try {if (configCameraParams(cameraManager, specificCameraId)) {return;}for (String cameraId : cameraManager.getCameraIdList()) {if (configCameraParams(cameraManager, cameraId)) {return;}}} catch (CameraAccessException e) {e.printStackTrace();} catch (NullPointerException e) {// Currently an NPE is thrown when the Camera2API is used but not supported on the// device this code runs.if (camera2Listener ! null) {camera2Listener.onCameraError(e);}}}private boolean configCameraParams(CameraManager manager, String cameraId) throws CameraAccessException {CameraCharacteristics characteristics manager.getCameraCharacteristics(cameraId);StreamConfigurationMap map characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);if (map null) {return false;}mPreviewSize getBestSupportedSize(new ArrayList(Arrays.asList(map.getOutputSizes(SurfaceTexture.class))));mImageReader ImageReader.newInstance(mPreviewSize.getWidth(), mPreviewSize.getHeight(),ImageFormat.YUV_420_888, 2);mImageReader.setOnImageAvailableListener(new OnImageAvailableListenerImpl(), mBackgroundHandler);mSensorOrientation characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);mCameraId cameraId;return true;}private void openCamera() {CameraManager cameraManager (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);setUpCameraOutputs(cameraManager);configureTransform(mTextureView.getWidth(), mTextureView.getHeight());try {if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {throw new RuntimeException(Time out waiting to lock camera opening.);}cameraManager.openCamera(mCameraId, mDeviceStateCallback, mBackgroundHandler);} catch (CameraAccessException e) {if (camera2Listener ! null) {camera2Listener.onCameraError(e);}} catch (InterruptedException e) {if (camera2Listener ! null) {camera2Listener.onCameraError(e);}}}/*** Closes the current {link CameraDevice}.*/private void closeCamera() {try {mCameraOpenCloseLock.acquire();if (null ! mCaptureSession) {mCaptureSession.close();mCaptureSession null;}if (null ! mCameraDevice) {mCameraDevice.close();mCameraDevice null;}if (null ! mImageReader) {mImageReader.close();mImageReader null;}if (camera2Listener ! null) {camera2Listener.onCameraClosed();}} catch (InterruptedException e) {if (camera2Listener ! null) {camera2Listener.onCameraError(e);}} finally {mCameraOpenCloseLock.release();}}/*** Starts a background thread and its {link Handler}.*/private void startBackgroundThread() {mBackgroundThread new HandlerThread(CameraBackground);mBackgroundThread.start();mBackgroundHandler new Handler(mBackgroundThread.getLooper());}/*** Stops the background thread and its {link Handler}.*/private void stopBackgroundThread() {mBackgroundThread.quitSafely();try {mBackgroundThread.join();mBackgroundThread null;mBackgroundHandler null;} catch (InterruptedException e) {e.printStackTrace();}}/*** Creates a new {link CameraCaptureSession} for camera preview.*/private void createCameraPreviewSession() {try {SurfaceTexture texture mTextureView.getSurfaceTexture();assert texture ! null;// We configure the size of default buffer to be the size of camera preview we want.texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());// This is the output Surface we need to start preview.Surface surface new Surface(texture);// We set up a CaptureRequest.Builder with the output Surface.mPreviewRequestBuilder mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE,CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);mPreviewRequestBuilder.addTarget(surface);mPreviewRequestBuilder.addTarget(mImageReader.getSurface());// Here, we create a CameraCaptureSession for camera preview.mCameraDevice.createCaptureSession(Arrays.asList(surface, mImageReader.getSurface()),mCaptureStateCallback, mBackgroundHandler);} catch (CameraAccessException e) {e.printStackTrace();}}/*** Configures the necessary {link Matrix} transformation to mTextureView.* This method should be called after the camera preview size is determined in* setUpCameraOutputs and also the size of mTextureView is fixed.** param viewWidth The width of mTextureView* param viewHeight The height of mTextureView*/private void configureTransform(int viewWidth, int viewHeight) {if (null mTextureView || null mPreviewSize) {return;}Matrix matrix new Matrix();RectF viewRect new RectF(0, 0, viewWidth, viewHeight);RectF bufferRect new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());float centerX viewRect.centerX();float centerY viewRect.centerY();if (Surface.ROTATION_90 rotation || Surface.ROTATION_270 rotation) {bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);float scale Math.max((float) viewHeight / mPreviewSize.getHeight(),(float) viewWidth / mPreviewSize.getWidth());matrix.postScale(scale, scale, centerX, centerY);matrix.postRotate((90 * (rotation - 2)) % 360, centerX, centerY);} else if (Surface.ROTATION_180 rotation) {matrix.postRotate(180, centerX, centerY);}Log.i(TAG, configureTransform: getCameraOri(rotation, mCameraId) rotation * 90);mTextureView.setTransform(matrix);}public static final class Builder {/*** 预览显示的view目前仅支持textureView*/private TextureView previewDisplayView;/*** 是否镜像显示只支持textureView*/private boolean isMirror;/*** 指定的相机ID*/private String specificCameraId;/*** 事件回调*/private Camera2Listener camera2Listener;/*** 屏幕的长宽在选择最佳相机比例时用到*/private Point previewViewSize;/*** 传入getWindowManager().getDefaultDisplay().getRotation()的值即可*/private int rotation;/*** 指定的预览宽高若系统支持则会以这个预览宽高进行预览*/private Point previewSize;/*** 最大分辨率*/private Point maxPreviewSize;/*** 最小分辨率*/private Point minPreviewSize;/*** 上下文用于获取CameraManager*/private Context context;public Builder() {}public Builder previewOn(TextureView val) {previewDisplayView val;return this;}public Builder isMirror(boolean val) {isMirror val;return this;}public Builder previewSize(Point val) {previewSize val;return this;}public Builder maxPreviewSize(Point val) {maxPreviewSize val;return this;}public Builder minPreviewSize(Point val) {minPreviewSize val;return this;}public Builder previewViewSize(Point val) {previewViewSize val;return this;}public Builder rotation(int val) {rotation val;return this;}public Builder specificCameraId(String val) {specificCameraId val;return this;}public Builder cameraListener(Camera2Listener val) {camera2Listener val;return this;}public Builder context(Context val) {context val;return this;}public Camera2Helper build() {if (previewViewSize null) {Log.e(TAG, previewViewSize is null, now use default previewSize);}if (camera2Listener null) {Log.e(TAG, camera2Listener is null, callback will not be called);}if (previewDisplayView null) {throw new NullPointerException(you must preview on a textureView or a surfaceView);}if (maxPreviewSize ! null minPreviewSize ! null) {if (maxPreviewSize.x minPreviewSize.x || maxPreviewSize.y minPreviewSize.y) {throw new IllegalArgumentException(maxPreviewSize must greater than minPreviewSize);}}return new Camera2Helper(this);}}private class OnImageAvailableListenerImpl implements ImageReader.OnImageAvailableListener {private byte[] y;private byte[] u;private byte[] v;private ReentrantLock lock new ReentrantLock();Overridepublic void onImageAvailable(ImageReader reader) {Image image reader.acquireNextImage();// Y:U:V 4:2:2if (camera2Listener ! null image.getFormat() ImageFormat.YUV_420_888) {Image.Plane[] planes image.getPlanes();// 加锁确保y、u、v来源于同一个Imagelock.lock();// 重复使用同一批byte数组减少gc频率if (y null) {y new byte[planes[0].getBuffer().limit() - planes[0].getBuffer().position()];u new byte[planes[1].getBuffer().limit() - planes[1].getBuffer().position()];v new byte[planes[2].getBuffer().limit() - planes[2].getBuffer().position()];}if (image.getPlanes()[0].getBuffer().remaining() y.length) {planes[0].getBuffer().get(y);planes[1].getBuffer().get(u);planes[2].getBuffer().get(v);camera2Listener.onPreview(y, u, v, mPreviewSize, planes[0].getRowStride());}lock.unlock();}image.close();}}}然后初始化后绑定布局texture_preview.viewTreeObserver.addOnGlobalLayoutListener(this)override fun onGlobalLayout() {texture_preview.viewTreeObserver.removeOnGlobalLayoutListener(this)if (!checkPermissions(NEEDED_PERMISSIONS)) {ActivityCompat.requestPermissions(this, NEEDED_PERMISSIONS, ACTION_REQUEST_PERMISSIONS)} else {initCamera()}}初始化相机camera2Helper Camera2Helper.Builder().cameraListener(this).maxPreviewSize(Point(1920, 1080)).minPreviewSize(Point(1280, 720)).specificCameraId(CAMERA_ID).context(applicationContext).previewOn(texture_preview).previewViewSize(Point(texture_preview.width,texture_preview.height)).rotation(windowManager.defaultDisplay.rotation).build()camera2Helper.start()然后在相机的回调里面我们看看做了什么首先是相机启动的时候override fun onCameraOpened(cameraDevice: CameraDevice?,cameraId: String?,previewSize: Size?,displayOrientation: Int,isMirror: Boolean) {Log.i(Wzz, onCameraOpened: previewSize ${previewSize?.width} x ${previewSize?.height})mDisplayOrientation displayOrientationisMirrorPreview isMirroropenedCameraId cameraId}然后重要的就是preview里面返回的yuv原始数据if (!this::nv21.isInitialized) {nv21 ByteArray(stride * previewSize!!.height * 3 / 2)}// 回传数据是YUV422if (y!!.size / u!!.size 2) {ImageUtil.yuv422ToYuv420sp(y, u, v, nv21, stride, previewSize!!.height)} else if (y.size / u.size 4) {ImageUtil.yuv420ToYuv420sp(y, u, v, nv21, stride, previewSize!!.height)}val yuvImage YuvImage(nv21, ImageFormat.NV21, stride, previewSize!!.height, null)然后转换nv21YuvImage yuvimage new YuvImage(_data, ImageFormat.NV21,_previewSize.getWidth(), _previewSize.getHeight(), null);再继续转换为rgb_565格式ByteArrayOutputStream baos new ByteArrayOutputStream();BitmapFactory.Options bfo new BitmapFactory.Options();bfo.inPreferredConfig Bitmap.Config.RGB_565;Bitmap _currentFrame BitmapFactory.decodeStream(new ByteArrayInputStream(baos.toByteArray()), null, bfo);如果需要转换方向Matrix matrix new Matrix();if(mIsVertical){matrix.postRotate(90);matrix.preScale(-1, 1); //Android内置人脸识别的图像必须是头在上,所以要做旋转变换// We rotate the same Bitmap_currentFrame Bitmap.createBitmap(_currentFrame, 0, 0,_previewSize.getWidth(), _previewSize.getHeight(), matrix, false);}然后就可以用faceDetector来进行检测了FaceDetector d new FaceDetector(_currentFrame.getWidth(),_currentFrame.getHeight(),1);Face[] faces new Face[1];d.findFaces(_currentFrame, faces);接下来就可以自己对face进行判断处理进行自己需要的操作了然后介绍如何绘制人脸位置方框private fun handleFaces(face: FaceDetector.Face) {var pointF PointF()face.getMidPoint(pointF)mFacesRect.clear()val widthp texture_preview.width/heightval heightP texture_preview.height/widthval spec face.eyesDistance() / heightPval bounds pointFval y bounds.y * heightPval x bounds.x * widthpval left x - specval top y - specval right x specval bottom y specval rawFaceRect RectF(left.toFloat(), top.toFloat(), right.toFloat(), bottom.toFloat())// val rawFaceRect3 RectF(0f, 0f, 10f, 20f)val rawFaceRect3 RectF( 0f,0f,texture_preview.width.toFloat(),texture_preview.height.toFloat())mFaceDetectMatrix.mapRect(rawFaceRect)Log.d(wzz,prewview: ${width} * ${height})Log.d(wzz,texture_preview: ${texture_preview.width} * ${texture_preview.height})Log.d(wzz,texture_preview: ${texture_preview.top} * ${texture_preview.left} --- ${texture_preview.right}---${texture_preview.bottom})val resultFaceRect rawFaceRectmFacesRect.add(resultFaceRect)mFacesRect.add(rawFaceRect3)Log.d(wzz,原始人脸位置: ${bounds.x} * ${bounds.y} ----${face.eyesDistance()} )Log.d(wzz,转换后人脸位置: ${resultFaceRect.width()} * ${resultFaceRect.height()} ${resultFaceRect.left} ${resultFaceRect.top} ${resultFaceRect.right} ${resultFaceRect.bottom} )runOnUiThread {faceView.setFaces(mFacesRect)}}然后具体的参数大家就可以调试着玩了后续会推出人脸识别opencv方案1.最近要研究一下opencv 2d人脸模型转3d2.以及arcore的人脸增强玩法大家有什么问题可以评论讨论也可以直接联系博主
