Java Code Examples for android.media.FaceDetector#findFaces()
The following examples show how to use
android.media.FaceDetector#findFaces() .
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Example 1
| Source File: FaceUtils.java From RairDemo with Apache License 2.0 | 5 votes |
|
public static Bitmap detectionFace(Bitmap b) {
// 检测前必须转化为RGB_565格式。文末有详述连接
Bitmap bitmap = b.copy(Bitmap.Config.RGB_565, true);
b.recycle();
// 设定最大可查的人脸数量
int MAX_FACES = 5;
FaceDetector faceDet = new FaceDetector(bitmap.getWidth(), bitmap.getHeight(), MAX_FACES);
// 将人脸数据存储到faceArray 中
FaceDetector.Face[] faceArray = new FaceDetector.Face[MAX_FACES];
// 返回找到图片中人脸的数量，同时把返回的脸部位置信息放到faceArray中，过程耗时
int findFaceCount = faceDet.findFaces(bitmap, faceArray);
// 获取传回的脸部数组中的第一张脸的信息
FaceDetector.Face face1 = faceArray[0];
// 获取双眼的中心点，用一个PointF来接收其x、y坐标
PointF point = new PointF();
face1.getMidPoint(point);
// 获取该部位为人脸的可信度，0~1
float confidence = face1.confidence();
// 获取双眼间距
float eyesDistance = face1.eyesDistance();
// 获取面部姿势
// 传入X则获取到x方向上的角度，传入Y则获取到y方向上的角度，传入Z则获取到z方向上的角度
float angle = face1.pose(FaceDetector.Face.EULER_X);
// todo 在bitmap上绘制一个Rect框住脸，因为返回的是眼睛位置，所以还要做一些处理
return bitmap;
}
Example 2
| Source File: ImageData.java From PrivacyStreams with Apache License 2.0 | 5 votes |
|
List<FaceDetector.Face> getFaces(UQI uqi) {
int max = 10;
List<FaceDetector.Face> faces = new ArrayList<>();
Bitmap bitmap = this.getBitmapRGB565(uqi);
if (bitmap == null) return faces;
FaceDetector detector = new FaceDetector(bitmap.getWidth(), bitmap.getHeight(), max);
FaceDetector.Face[] facesArray = new FaceDetector.Face[max];
int count = detector.findFaces(bitmap, facesArray);
for (int i = 0; i < count; i++) {
FaceDetector.Face face = facesArray[i];
if (face != null && face.confidence() > 0.3)
faces.add(face);
}
return faces;
}
Example 3
| Source File: PUtil.java From PHONK with GNU General Public License v3.0 | 5 votes |
|
@PhonkMethod(description = "Detect faces in a bitmap", example = "")
@PhonkMethodParam(params = {"Bitmap", "numFaces"})
public int detectFaces(Bitmap bmp, int num_faces) {
FaceDetector face_detector = new FaceDetector(bmp.getWidth(), bmp.getHeight(), num_faces);
FaceDetector.Face[] faces = new FaceDetector.Face[num_faces];
int face_count = face_detector.findFaces(bmp, faces);
return face_count;
}
Example 4
| Source File: CropImageActivity.java From YiBo with Apache License 2.0 | 5 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(), faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.getHighlightViews().size() == 1) {
mCrop = mImageView.getHighlightViews().get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
// CR: no need for the variable t. just do
// Toast.makeText(...).show().
Toast t = Toast.makeText(CropImageActivity.this, "Choose One", Toast.LENGTH_SHORT);
t.show();
}
}
});
}
Example 5
| Source File: CropImageActivity.java From memoir with Apache License 2.0 | 5 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(),
faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.mHighlightViews.size() == 1) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
}
});
}
Example 6
| Source File: PreProcessor.java From Android-Face-Recognition-with-Deep-Learning-Library with Apache License 2.0 | 5 votes |
|
public void setFaces(PreProcessorFactory.PreprocessingMode preprocessingMode) {
List<Mat> images = getImages();
PreferencesHelper preferencesHelper = new PreferencesHelper(context);
if (preferencesHelper.getDetectionMethod()){
faces = faceDetection.getFaces(images.get(0));
angle = faceDetection.getAngle();
} else {
Mat img = images.get(0);
FaceDetector faceDetector = new FaceDetector(img.cols(), img.rows(), 1);
Bitmap bmp = Bitmap.createBitmap(img.cols(), img.rows(), Bitmap.Config.RGB_565);
Utils.matToBitmap(img, bmp);
FaceDetector.Face[] facesAndroid = new FaceDetector.Face[1];
if (faceDetector.findFaces(bmp, facesAndroid) > 0){
faces = new Rect[facesAndroid.length];
for (int i=0; i<facesAndroid.length; i++){
PointF pointF = new PointF();
facesAndroid[i].getMidPoint(pointF);
int xWidth = (int) (1.34 * facesAndroid[i].eyesDistance());
int yWidth = (int) (1.12 * facesAndroid[i].eyesDistance());
int dist = (int) (2.77 * facesAndroid[i].eyesDistance());
Rect face = new Rect((int) pointF.x - xWidth, (int) pointF.y - yWidth, dist, dist);
faces[i] = face;
}
}
}
if (preprocessingMode == PreProcessorFactory.PreprocessingMode.RECOGNITION && preferencesHelper.getDetectionMethod()){
// Change the image rotation to the angle where the face was detected
images.remove(0);
images.add(faceDetection.getImg());
setImages(images);
}
}
Example 7
| Source File: CropImage.java From droidddle with Apache License 2.0 | 5 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(), faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.mHighlightViews.size() == 1) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
Toast t = Toast.makeText(CropImage.this, R.string.multiface_crop_help, Toast.LENGTH_SHORT);
t.show();
}
}
});
}
Example 8
| Source File: CropImageActivity.java From Android-RTEditor with Apache License 2.0 | 5 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(),
faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.mHighlightViews.size() == 1) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
}
});
}
Example 9
| Source File: CropImage.java From reader with MIT License | 5 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(),
faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.mHighlightViews.size() == 1) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
Toast t = Toast.makeText(CropImage.this,
R.string.multiface_crop_help,
Toast.LENGTH_SHORT);
t.show();
}
}
});
}
Example 10
| Source File: CropImage.java From WifiChat with GNU General Public License v2.0 | 4 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(),
faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
// if (mNumFaces > 0) {
// // for (int i = 0; i < mNumFaces; i++) {
// for (int i = 0; i < 1; i++) {
// handleFace(mFaces[i]);
// }
// } else {
makeDefault();
// }
mImageView.invalidate();
if (mImageView.mHighlightViews.size() > 0) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
// CR: no need for the variable t. just do
// Toast.makeText(...).show().
// Toast t = Toast.makeText(mContext,
// R.string.multiface_crop_help, Toast.LENGTH_SHORT);
// t.show();
}
}
});
}
Example 11
| Source File: FaceUtils.java From RairDemo with Apache License 2.0 | 4 votes |
|
public static Bitmap DetectionBitmap(Bitmap b) {
Bitmap bitmap = null;
// 检测前必须转化为RGB_565格式。文末有详述连接
bitmap = b.copy(Bitmap.Config.RGB_565, true);
b.recycle();
// 设置你想检测的数量，数值越大错误率越高，所以需要置信度来判断,但有时候置信度也会出问题
int MAX_FACES = 30;// I found it can detect number of face at least 27,
FaceDetector faceDet = new FaceDetector(bitmap.getWidth(), bitmap.getHeight(), MAX_FACES);
// 将人脸数据存储到faceArray中
FaceDetector.Face[] faceArray = new FaceDetector.Face[MAX_FACES];
// 返回找到图片中人脸的数量，同时把返回的脸部位置信息放到faceArray中，过程耗时,图片越大耗时越久
int findFaceNum = faceDet.findFaces(bitmap, faceArray);
Log.e("tag", "找到脸部数量:" + findFaceNum);
// 获取传回的第一张脸信息
FaceDetector.Face face1 = faceArray[0];
// 获取双眼的中心点，用一个PointF来接收其x、y坐标
PointF point = new PointF();
face1.getMidPoint(point);
// 获取该部位为人脸的可信度，0~1
float confidence = face1.confidence();
// 获取双眼的间距
float eyesDistance = face1.eyesDistance();
// 传入X则获取到x方向上的角度，传入Y则获取到y方向上的角度，传入Z则获取到z方向上的角度
float angle = face1.pose(FaceDetector.Face.EULER_X);
Paint p = new Paint();
p.setAntiAlias(true);
p.setStrokeWidth(1);
p.setStyle(Paint.Style.STROKE);
p.setColor(Color.GREEN);
Canvas canvas = new Canvas(bitmap);
PointF pf = new PointF();
RectF r = new RectF();
for (FaceDetector.Face face : faceArray) {
if (face == null) {
continue;
}
face.getMidPoint(pf);
Log.e("tag", "FaceSDK : DetectionBitmap + " + face.confidence());
// 这里的框，参数分别是：左上角的X,Y 右下角的X,Y
// 也就是左上角（r.left,r.top），右下角( r.right,r.bottom)。
// 该宽度是两眼珠黑色外边距
float eyesDistance1 = face.eyesDistance();
r.left = pf.x - eyesDistance1 / 1.2f;
r.right = pf.x + eyesDistance1 / 1.2f;
r.top = pf.y - eyesDistance1;
r.bottom = pf.y + eyesDistance1 * 1.5f;
Log.d(TAG, r.toString());
// 画框
canvas.drawRect(r, p);
}
return bitmap;
}
Example 12
| Source File: FaceDetectionThread.java From Android-Screen-to-Face-Distance-Measurement with MIT License | 4 votes |
|
/**
* bla bla bla
*/
@Override
public void run() {
long t = System.currentTimeMillis();
YuvImage yuvimage = new YuvImage(_data, ImageFormat.NV21,
_previewSize.width, _previewSize.height, null);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (!yuvimage.compressToJpeg(new Rect(0, 0, _previewSize.width,
_previewSize.height), 100, baos)) {
Log.e("Camera", "compressToJpeg failed");
}
Log.i("Timing", "Compression finished: "
+ (System.currentTimeMillis() - t));
t = System.currentTimeMillis();
BitmapFactory.Options bfo = new BitmapFactory.Options();
bfo.inPreferredConfig = Bitmap.Config.RGB_565;
_currentFrame = BitmapFactory.decodeStream(new ByteArrayInputStream(
baos.toByteArray()), null, bfo);
Log.i("Timing", "Decode Finished: " + (System.currentTimeMillis() - t));
t = System.currentTimeMillis();
// Rotate the so it siuts our portrait mode
Matrix matrix = new Matrix();
matrix.postRotate(90);
matrix.preScale(-1, 1);
// We rotate the same Bitmap
_currentFrame = Bitmap.createBitmap(_currentFrame, 0, 0,
_previewSize.width, _previewSize.height, matrix, false);
Log.i("Timing",
"Rotate, Create finished: " + (System.currentTimeMillis() - t));
t = System.currentTimeMillis();
if (_currentFrame == null) {
Log.e(FACEDETECTIONTHREAD_TAG, "Could not decode Image");
return;
}
FaceDetector d = new FaceDetector(_currentFrame.getWidth(),
_currentFrame.getHeight(), 1);
Face[] faces = new Face[1];
d.findFaces(_currentFrame, faces);
Log.i("Timing",
"FaceDetection finished: " + (System.currentTimeMillis() - t));
t = System.currentTimeMillis();
_currentFace = faces[0];
Log.d(FACEDETECTIONTHREAD_TAG, "Found: " + faces[0] + " Faces");
}
Example 13
| Source File: FaceCropper.java From UltimateAndroid with Apache License 2.0 | 4 votes |
|
public Bitmap cropFace(Bitmap original) {
Bitmap fixedBitmap = BitmapUtils.forceEvenBitmapSize(original);
fixedBitmap = BitmapUtils.forceConfig565(fixedBitmap);
FaceDetector faceDetector = new FaceDetector(
fixedBitmap.getWidth(), fixedBitmap.getHeight(),
mMaxFaces);
FaceDetector.Face[] faces = new FaceDetector.Face[mMaxFaces];
// The bitmap must be in 565 format (for now).
int faceCount = faceDetector.findFaces(fixedBitmap, faces);
Logs.d("face crop");
if (faceCount == 0) {
return fixedBitmap;
}
int initX = fixedBitmap.getWidth();
int initY = fixedBitmap.getHeight();
int endX = 0;
int endY = 0;
PointF centerFace = new PointF();
// Calculates minimum box to fit all detected faces
for (int i = 0; i < faceCount; i++) {
FaceDetector.Face face = faces[i];
// Eyes distance * 3 usually fits an entire face
int faceSize = (int) (face.eyesDistance() * 3);
if (SizeMode.FaceMarginPx.equals(mSizeMode)) {
faceSize += mFaceMarginPx * 2; // *2 for top and down/right and left effect
} else if (SizeMode.EyeDistanceFactorMargin.equals(mSizeMode)) {
faceSize += face.eyesDistance() * mEyeDistanceFactorMargin;
}
faceSize = Math.max(faceSize, mFaceMinSize);
face.getMidPoint(centerFace);
int tInitX = (int) (centerFace.x - faceSize / 2);
int tInitY = (int) (centerFace.y - faceSize / 2);
tInitX = Math.max(0, tInitX);
tInitY = Math.max(0, tInitY);
int tEndX = tInitX + faceSize;
int tEndY = tInitY + faceSize;
tEndX = Math.min(tEndX, fixedBitmap.getWidth());
tEndY = Math.min(tEndY, fixedBitmap.getHeight());
initX = Math.min(initX, tInitX);
initY = Math.min(initY, tInitY);
endX = Math.max(endX, tEndX);
endY = Math.max(endY, tEndY);
}
int sizeX = endX - initX;
int sizeY = endY - initY;
if (sizeX + initX > fixedBitmap.getWidth()) {
sizeX = fixedBitmap.getWidth() - initX;
}
if (sizeY + initY > fixedBitmap.getHeight()) {
sizeY = fixedBitmap.getHeight() - initY;
}
Bitmap croppedBitmap = Bitmap.createBitmap(fixedBitmap, initX, initY, sizeX, sizeY);
if (fixedBitmap != croppedBitmap) {
fixedBitmap.recycle();
}
return croppedBitmap;
}
Example 14
| Source File: FaceCropper.java From UltimateAndroid with Apache License 2.0 | 4 votes |
|
public Bitmap cropFace(Bitmap original) {
Bitmap fixedBitmap = BitmapUtils.forceEvenBitmapSize(original);
fixedBitmap = BitmapUtils.forceConfig565(fixedBitmap);
FaceDetector faceDetector = new FaceDetector(
fixedBitmap.getWidth(), fixedBitmap.getHeight(),
mMaxFaces);
FaceDetector.Face[] faces = new FaceDetector.Face[mMaxFaces];
// The bitmap must be in 565 format (for now).
int faceCount = faceDetector.findFaces(fixedBitmap, faces);
Logs.d("face crop");
if (faceCount == 0) {
return fixedBitmap;
}
int initX = fixedBitmap.getWidth();
int initY = fixedBitmap.getHeight();
int endX = 0;
int endY = 0;
PointF centerFace = new PointF();
// Calculates minimum box to fit all detected faces
for (int i = 0; i < faceCount; i++) {
FaceDetector.Face face = faces[i];
// Eyes distance * 3 usually fits an entire face
int faceSize = (int) (face.eyesDistance() * 3);
if (SizeMode.FaceMarginPx.equals(mSizeMode)) {
faceSize += mFaceMarginPx * 2; // *2 for top and down/right and left effect
} else if (SizeMode.EyeDistanceFactorMargin.equals(mSizeMode)) {
faceSize += face.eyesDistance() * mEyeDistanceFactorMargin;
}
faceSize = Math.max(faceSize, mFaceMinSize);
face.getMidPoint(centerFace);
int tInitX = (int) (centerFace.x - faceSize / 2);
int tInitY = (int) (centerFace.y - faceSize / 2);
tInitX = Math.max(0, tInitX);
tInitY = Math.max(0, tInitY);
int tEndX = tInitX + faceSize;
int tEndY = tInitY + faceSize;
tEndX = Math.min(tEndX, fixedBitmap.getWidth());
tEndY = Math.min(tEndY, fixedBitmap.getHeight());
initX = Math.min(initX, tInitX);
initY = Math.min(initY, tInitY);
endX = Math.max(endX, tEndX);
endY = Math.max(endY, tEndY);
}
int sizeX = endX - initX;
int sizeY = endY - initY;
if (sizeX + initX > fixedBitmap.getWidth()) {
sizeX = fixedBitmap.getWidth() - initX;
}
if (sizeY + initY > fixedBitmap.getHeight()) {
sizeY = fixedBitmap.getHeight() - initY;
}
Bitmap croppedBitmap = Bitmap.createBitmap(fixedBitmap, initX, initY, sizeX, sizeY);
if (fixedBitmap != croppedBitmap) {
fixedBitmap.recycle();
}
return croppedBitmap;
}
Example 15
| Source File: CropImage.java From Pi-Locker with GNU General Public License v2.0 | 4 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(),
faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.mHighlightViews.size() == 1) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
Toast.makeText(CropImage.this,
"Multi face crop help",
Toast.LENGTH_SHORT).show();
}
}
});
}
Example 16
| Source File: CropImage.java From reader with MIT License | 4 votes |
|
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(),
faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
// if (mNumFaces > 0) {
// for (int i = 0; i < mNumFaces; i++) {
// handleFace(mFaces[i]);
// }
// } else {
// makeDefault();
// }
makeDefault();
mImageView.invalidate();
if (mImageView.mHighlightViews.size() == 1) {
mCrop = mImageView.mHighlightViews.get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
Toast t = Toast.makeText(CropImage.this,
R.string.multiface_crop_help,
Toast.LENGTH_SHORT);
t.show();
}
}
});
}
Example 17
| Source File: FaceCropper.java From FaceRecognition with Apache License 2.0 | 4 votes |
|
/**
* 剪裁脸部的核心方法
*
* @param bitmap
* 待识别的图片
* @param debug
* 是否开启调试模式
* @return
*/
private FaceResult cropFace(Bitmap bitmap, boolean debug) {
Bitmap formatBitmap = BitmapOperate.formatBitmap(bitmap);
formatBitmap = BitmapOperate.formatBitmapTo565(formatBitmap);
Bitmap aimBitmap = formatBitmap.copy(Bitmap.Config.RGB_565, true);
if (formatBitmap != aimBitmap) {
formatBitmap.recycle();
}
// 创建一个人脸识别器
FaceDetector faceDetector = new FaceDetector(aimBitmap.getWidth(),
aimBitmap.getHeight(), mMaxFaces);
// 人脸数组
FaceDetector.Face[] faces = new FaceDetector.Face[mMaxFaces];
// Bitmap必须是565格式
int faceCount = faceDetector.findFaces(aimBitmap, faces);
if (debug) {
Log.d("kymjs", faceCount + "张脸被找到");
}
if (faceCount == 0) {
return new FaceResult(aimBitmap);
}
int initX = aimBitmap.getWidth();
int initY = aimBitmap.getHeight();
int endX = 0;
int endY = 0;
PointF centerFace = new PointF();
Canvas canvas = new Canvas(aimBitmap);
canvas.drawBitmap(aimBitmap, new Matrix(), null);
// 计算每张脸的最小外接圆
for (int i = 0; i < faceCount; i++) {
FaceDetector.Face face = faces[i];
// 通常采用眼睛间距乘以三作为脸的外接圆直径
int faceSize = (int) (face.eyesDistance() * 3);
if (SizeMode.FACE_MARGIN.equals(mSizeMode)) {
faceSize += mFaceMarginPx * 2;
} else if (SizeMode.EYE_MARGIN.equals(mSizeMode)) {
faceSize += face.eyesDistance() * mEyeMarginPx;
}
faceSize = Math.max(faceSize, mFaceMinSize);
face.getMidPoint(centerFace);
if (debug) { // 显示调试人脸识别圈
canvas.drawPoint(centerFace.x, centerFace.y, mDebugPainter);
canvas.drawCircle(centerFace.x, centerFace.y,
face.eyesDistance() * 1.5f, mDebugPainter);
}
int tInitX = (int) (centerFace.x - faceSize / 2);
int tInitY = (int) (centerFace.y - faceSize / 2);
tInitX = Math.max(0, tInitX);
tInitY = Math.max(0, tInitY);
int tEndX = tInitX + faceSize;
int tEndY = tInitY + faceSize;
tEndX = Math.min(tEndX, aimBitmap.getWidth());
tEndY = Math.min(tEndY, aimBitmap.getHeight());
initX = Math.min(initX, tInitX);
initY = Math.min(initY, tInitY);
endX = Math.max(endX, tEndX);
endY = Math.max(endY, tEndY);
}
int sizeX = endX - initX;
int sizeY = endY - initY;
if (sizeX + initX > aimBitmap.getWidth()) {
sizeX = aimBitmap.getWidth() - initX;
}
if (sizeY + initY > aimBitmap.getHeight()) {
sizeY = aimBitmap.getHeight() - initY;
}
Point init = new Point(initX, initY);
Point end = new Point(initX + sizeX, initY + sizeY);
return new FaceResult(aimBitmap, init, end);
}
Example 18
| Source File: FaceCropper.java From AndroidFaceCropper with Apache License 2.0 | 4 votes |
|
protected CropResult cropFace(Bitmap original, boolean debug) {
Bitmap fixedBitmap = BitmapUtils.forceEvenBitmapSize(original);
fixedBitmap = BitmapUtils.forceConfig565(fixedBitmap);
Bitmap mutableBitmap = fixedBitmap.copy(Bitmap.Config.RGB_565, true);
if (fixedBitmap != mutableBitmap) {
fixedBitmap.recycle();
}
FaceDetector faceDetector = new FaceDetector(
mutableBitmap.getWidth(), mutableBitmap.getHeight(),
mMaxFaces);
FaceDetector.Face[] faces = new FaceDetector.Face[mMaxFaces];
// The bitmap must be in 565 format (for now).
int faceCount = faceDetector.findFaces(mutableBitmap, faces);
if (BuildConfig.DEBUG) {
Log.d(LOG_TAG, faceCount + " faces found");
}
if (faceCount == 0) {
return new CropResult(mutableBitmap);
}
int initX = mutableBitmap.getWidth();
int initY = mutableBitmap.getHeight();
int endX = 0;
int endY = 0;
PointF centerFace = new PointF();
Canvas canvas = new Canvas(mutableBitmap);
canvas.drawBitmap(mutableBitmap, new Matrix(), null);
// Calculates minimum box to fit all detected faces
for (int i = 0; i < faceCount; i++) {
FaceDetector.Face face = faces[i];
// Eyes distance * 3 usually fits an entire face
int faceSize = (int) (face.eyesDistance() * 3);
if (SizeMode.FaceMarginPx.equals(mSizeMode)) {
faceSize += mFaceMarginPx * 2; // *2 for top and down/right and left effect
}
else if (SizeMode.EyeDistanceFactorMargin.equals(mSizeMode)) {
faceSize += face.eyesDistance() * mEyeDistanceFactorMargin;
}
faceSize = Math.max(faceSize, mFaceMinSize);
face.getMidPoint(centerFace);
if (debug) {
canvas.drawPoint(centerFace.x, centerFace.y, mDebugPainter);
canvas.drawCircle(centerFace.x, centerFace.y, face.eyesDistance() * 1.5f, mDebugPainter);
}
int tInitX = (int) (centerFace.x - faceSize / 2);
int tInitY = (int) (centerFace.y - faceSize / 2);
tInitX = Math.max(0, tInitX);
tInitY = Math.max(0, tInitY);
int tEndX = tInitX + faceSize;
int tEndY = tInitY + faceSize;
tEndX = Math.min(tEndX, mutableBitmap.getWidth());
tEndY = Math.min(tEndY, mutableBitmap.getHeight());
initX = Math.min(initX, tInitX);
initY = Math.min(initY, tInitY);
endX = Math.max(endX, tEndX);
endY = Math.max(endY, tEndY);
}
int sizeX = endX - initX;
int sizeY = endY - initY;
if (sizeX + initX > mutableBitmap.getWidth()) {
sizeX = mutableBitmap.getWidth() - initX;
}
if (sizeY + initY > mutableBitmap.getHeight()) {
sizeY = mutableBitmap.getHeight() - initY;
}
Point init = new Point(initX, initY);
Point end = new Point(initX + sizeX, initY + sizeY);
return new CropResult(mutableBitmap, init, end);
}
Example 19
| Source File: MasaccioImageView.java From Masaccio with Apache License 2.0 | 2 votes |
|
@Override
public Face[] process(final Bitmap bitmap) {
final Map<Bitmap, Face[]> facesMap = mFacesMap;
final Face[] preProcessed = facesMap.get(bitmap);
if (preProcessed != null) {
if (preProcessed == NO_FACES) {
return null;
}
return preProcessed;
}
final Face[] faces = new Face[MAX_FACES];
final Bitmap bitmap565 = convertTo565(bitmap);
if (bitmap565 != null) {
final FaceDetector faceDetector =
new FaceDetector(bitmap565.getWidth(), bitmap565.getHeight(), MAX_FACES);
final int faceCount = faceDetector.findFaces(bitmap565, faces);
if (faceCount > 0) {
final Face[] detected = new Face[faceCount];
System.arraycopy(faces, 0, detected, 0, faceCount);
facesMap.put(bitmap, detected);
return detected;
}
}
facesMap.put(bitmap, NO_FACES);
return null;
}
Example 20
| Source File: FaceRecognitionPlugin.java From media-for-mobile with Apache License 2.0 | 2 votes |
|
@Override
public RecognitionOutput recognize(RecognitionInput input) {
FaceRecognitionInput recognitioInput = null;
if (input instanceof FaceRecognitionInput) {
recognitioInput = (FaceRecognitionInput) input;
} else {
throw new IllegalArgumentException("Invalid arguments.");
}
Bitmap bitmap = recognitioInput.getBitmap();
if (lastBitmapWidth != bitmap.getWidth() || lastBitmapHeight != bitmap.getHeight()) {
lastBitmapWidth = bitmap.getWidth();
lastBitmapHeight = bitmap.getHeight();
faceDetector = new FaceDetector(lastBitmapWidth, lastBitmapHeight, MAX_FACES);
}
FaceRecognitionOutput result = new FaceRecognitionOutput();
FaceDetector.Face[] faces = new FaceDetector.Face[MAX_FACES];
int facesDetected = faceDetector.findFaces(bitmap, faces);
PointF midPoint = new PointF();
for (int i = 0; i < facesDetected; i++) {
Face face = new Face();
face.mId = 0;
face.mConfidence = faces[i].confidence();
face.mEyeDistance = faces[i].eyesDistance();
faces[i].getMidPoint(midPoint);
face.mMidPointX = midPoint.x;
face.mMidPointY = midPoint.y;
result.add(face);
}
return result;
}
