A C D E F G I O P R S T V
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A

addRecognitionData(String, float) - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Add metadata obtainable after face recognition.

AutoFitTextureView - Class in com.libremobileos.yifan.face

A TextureView that can be adjusted to a specified aspect ratio.

AutoFitTextureView(Context) - Constructor for class com.libremobileos.yifan.face.AutoFitTextureView

AutoFitTextureView(Context, AttributeSet) - Constructor for class com.libremobileos.yifan.face.AutoFitTextureView

AutoFitTextureView(Context, AttributeSet, int) - Constructor for class com.libremobileos.yifan.face.AutoFitTextureView

C

com.libremobileos.yifan.face - package com.libremobileos.yifan.face

compare(float[]) - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Compare two FaceScanner.Faces

compare(float[], float[]) - Static method in class com.libremobileos.yifan.face.FaceScanner.Face

Static method to compare two FaceScanner.Faces.

compare(FaceScanner.Face) - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Compare two FaceScanner.Faces

convertYUV420ToARGB8888(byte[], byte[], byte[], int, int, int, int, int, int[]) - Static method in class com.libremobileos.yifan.face.ImageUtils

create(Context) - Static method in class com.libremobileos.yifan.face.FaceScanner

Create FaceScanner instance with sensible defaults regarding hardware acceleration (CPU, XNNPACK, 4 threads).

create(Context, boolean, boolean, int) - Static method in class com.libremobileos.yifan.face.FaceScanner

Create FaceScanner instance.

create(Context, float) - Static method in class com.libremobileos.yifan.face.FaceDetector

Create FaceDetector instance with sensible defaults regarding hardware acceleration (CPU, XNNPACK, 4 threads).

create(Context, float, boolean, boolean, int) - Static method in class com.libremobileos.yifan.face.FaceDetector

Create FaceDetector instance.

create(Context, float, int, int, int) - Static method in class com.libremobileos.yifan.face.FaceFinder

Create new FaceFinder instance with sensible defaults regarding hardware acceleration (CPU, XNNPACK, 4 threads).

create(Context, float, int, int, int, boolean, boolean, int) - Static method in class com.libremobileos.yifan.face.FaceFinder

Create new FaceFinder instance.

create(Context, FaceStorageBackend, float, int, int, int, float, float) - Static method in class com.libremobileos.yifan.face.FaceRecognizer

Create FaceRecognizer instance, with matching model ratio constraint and sensible defaults regarding hardware acceleration (CPU, XNNPACK, 4 threads).

create(Context, FaceStorageBackend, float, int, int, int, float, float, boolean, boolean, int) - Static method in class com.libremobileos.yifan.face.FaceRecognizer

Create FaceRecognizer instance, with matching model ratio constraint.

create(Context, FaceStorageBackend, float, int, int, int, float, int) - Static method in class com.libremobileos.yifan.face.FaceRecognizer

Create FaceRecognizer instance, with minimum matching model constraint and sensible defaults regarding hardware acceleration (CPU, XNNPACK, 4 threads).

create(Context, FaceStorageBackend, float, int, int, int, float, int, boolean, boolean, int) - Static method in class com.libremobileos.yifan.face.FaceRecognizer

Create FaceRecognizer instance, with minimum matching model constraint.

D

decode(String) - Static method in class com.libremobileos.yifan.face.FaceDataEncoder

Decode face model encoded by FaceDataEncoder.encode(float[][])

delete(String) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Delete all references to a face.

deleteInternal(String) - Method in class com.libremobileos.yifan.face.DirectoryFaceStorageBackend

deleteInternal(String) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Delete all references to a face.

deleteInternal(String) - Method in class com.libremobileos.yifan.face.SharedPreferencesFaceStorageBackend

deleteInternal(String) - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

detectFace(FaceScanner.InputImage, boolean) - Method in class com.libremobileos.yifan.face.FaceScanner

Scan the face inside the FaceScanner.InputImage.

detectFaces(FaceDetector.InputImage) - Method in class com.libremobileos.yifan.face.FaceDetector

Detect multiple faces in an FaceDetector.InputImage and return their locations.

DirectoryFaceStorageBackend - Class in com.libremobileos.yifan.face

FaceStorageBackend to store data in a directory.

DirectoryFaceStorageBackend(File) - Constructor for class com.libremobileos.yifan.face.DirectoryFaceStorageBackend

E

encode(float[][]) - Static method in class com.libremobileos.yifan.face.FaceDataEncoder

Encode face model to string.

extendRegistered(String, float[], boolean) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Adds 1D face model to existing 2D face model to improve accuracy.

F

FaceDataEncoder - Class in com.libremobileos.yifan.face

FaceDataEncoder() - Constructor for class com.libremobileos.yifan.face.FaceDataEncoder

FaceDetector - Class in com.libremobileos.yifan.face

Detect multiple faces in one large Bitmap and returns FaceDetector.Face objects.

FaceDetector.Face - Class in com.libremobileos.yifan.face

An immutable result returned by a FaceDetector describing what was recognized.

FaceDetector.InputImage - Class in com.libremobileos.yifan.face

Wrapper around Bitmap to avoid user passing unprocessed data

FaceDetector.InputImageProcessor - Class in com.libremobileos.yifan.face

Processes Bitmaps to compatible format

FaceFinder - Class in com.libremobileos.yifan.face

Combination of FaceDetector and FaceScanner for workloads where both face detection and face scanning are required.

FaceRecognizer - Class in com.libremobileos.yifan.face

Task-specific API for detecting & recognizing faces in an image.

FaceRecognizer.Face - Class in com.libremobileos.yifan.face

Stores a combination of FaceScanner.Face and FaceDetector.Face, for face recognition workloads

FaceScanner - Class in com.libremobileos.yifan.face

Raw wrapper around AI model that scans ONE Face inside a perfectly cropped Bitmap and returns facial features.

FaceScanner.Face - Class in com.libremobileos.yifan.face

An immutable result returned by a FaceDetector describing what was recognized.

FaceScanner.InputImage - Class in com.libremobileos.yifan.face

Wrapper around Bitmap to avoid user passing unprocessed data

FaceScanner.InputImageProcessor - Class in com.libremobileos.yifan.face

Processes Bitmaps to compatible format.

FaceStorageBackend - Class in com.libremobileos.yifan.face

Store Faces on disk (or in memory, or anywhere else, really).

FaceStorageBackend() - Constructor for class com.libremobileos.yifan.face.FaceStorageBackend

G

get(String) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Load 2D face model from storage.

get(String) - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

getBrightnessHint() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Get information about image brightness/face light conditions

getConfidence() - Method in class com.libremobileos.yifan.face.FaceDetector.Face

A score for how good the detection is relative to others.

getCrop() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Optional, source bitmap

getDetectionConfidence() - Method in class com.libremobileos.yifan.face.FaceRecognizer.Face

A score for how good the detection (NOT recognition, that's FaceScanner.Face.getDistance()) is relative to others.

getDistance() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

A score for how good the recognition is relative to others.

getExtra() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Optional, raw AI output

getInternal(String) - Method in class com.libremobileos.yifan.face.DirectoryFaceStorageBackend

getInternal(String) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Load 2D face model from storage.

getInternal(String) - Method in class com.libremobileos.yifan.face.SharedPreferencesFaceStorageBackend

getInternal(String) - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

getLocation() - Method in class com.libremobileos.yifan.face.FaceDetector.Face

Optional location within the source image for the location of the recognized object.

getLocation() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Optional location within the source image for the location of the recognized object.

getModelCount() - Method in class com.libremobileos.yifan.face.FaceRecognizer.Face

How many models detected the face.

getModelRatio() - Method in class com.libremobileos.yifan.face.FaceRecognizer.Face

How many models detected the face, ratio.

getNames() - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Get all known faces

getNames() - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

getNamesInternal() - Method in class com.libremobileos.yifan.face.DirectoryFaceStorageBackend

getNamesInternal() - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Get all known faces

getNamesInternal() - Method in class com.libremobileos.yifan.face.SharedPreferencesFaceStorageBackend

getNamesInternal() - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

getTitle() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Display name for the recognition.

getTransformationMatrix(int, int, int, int, int, boolean) - Static method in class com.libremobileos.yifan.face.ImageUtils

Returns a transformation matrix from one reference frame into another.

I

ImageUtils - Class in com.libremobileos.yifan.face

InputImageProcessor(int, int, int) - Constructor for class com.libremobileos.yifan.face.FaceDetector.InputImageProcessor

Create new FaceDetector.InputImage processor.

InputImageProcessor(Bitmap, int) - Constructor for class com.libremobileos.yifan.face.FaceScanner.InputImageProcessor

If the class gets instantiated, we enter a special mode of operation for detecting multiple faces on one large Bitmap.

isRecognized() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

Test if the face has already been recognized (if FaceScanner.Face.addRecognitionData(String, float) has been called)

O

onMeasure(int, int) - Method in class com.libremobileos.yifan.face.AutoFitTextureView

P

process(Bitmap) - Method in class com.libremobileos.yifan.face.FaceDetector.InputImageProcessor

Process Bitmap for use in AI model.

process(Bitmap) - Method in class com.libremobileos.yifan.face.FaceScanner.InputImageProcessor

In normal mode of operation, we take a perfectly cropped Bitmap containing one face and process it.

process(Bitmap, boolean) - Method in class com.libremobileos.yifan.face.FaceFinder

Process a Bitmap using FaceDetector, scanning the resulting found faces using FaceScanner after manually cropping the image.

process(Bitmap, int) - Static method in class com.libremobileos.yifan.face.FaceScanner.InputImageProcessor

In normal mode of operation, we take a perfectly cropped Bitmap containing one face and process it.

process(RectF) - Method in class com.libremobileos.yifan.face.FaceScanner.InputImageProcessor

In special mode of operation, we crop the image to detect multiple faces on one large Bitmap (in multiple passes).

R

recognize(Bitmap) - Method in class com.libremobileos.yifan.face.FaceRecognizer

Detect faces and scan them

register(String, float[]) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Store 1D face model by converting it to 2D and then calling FaceStorageBackend.register(String, float[][]).
Implementation looks like this: return register(rawname, new float[][] { alldata }) ).

register(String, float[][]) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Register/store new face.

register(String, float[][], boolean) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Register/store new face.

register(String, float[][], boolean) - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

registerInternal(String, String, boolean) - Method in class com.libremobileos.yifan.face.DirectoryFaceStorageBackend

registerInternal(String, String, boolean) - Method in class com.libremobileos.yifan.face.FaceStorageBackend

Register/store new face.

registerInternal(String, String, boolean) - Method in class com.libremobileos.yifan.face.SharedPreferencesFaceStorageBackend

registerInternal(String, String, boolean) - Method in class com.libremobileos.yifan.face.VolatileFaceStorageBackend

S

setAspectRatio(int, int) - Method in class com.libremobileos.yifan.face.AutoFitTextureView

Sets the aspect ratio for this view.

SharedPreferencesFaceStorageBackend - Class in com.libremobileos.yifan.face

FaceStorageBackend storing data in SharedPreferences

SharedPreferencesFaceStorageBackend(SharedPreferences) - Constructor for class com.libremobileos.yifan.face.SharedPreferencesFaceStorageBackend

Create/load SharedPreferencesFaceStorageBackend

T

toString() - Method in class com.libremobileos.yifan.face.FaceDetector.Face

toString() - Method in class com.libremobileos.yifan.face.FaceScanner.Face

V

VolatileFaceStorageBackend - Class in com.libremobileos.yifan.face

In-memory FaceStorageBackend, bypassing encoding and storage, relying on cache entirely for performance

VolatileFaceStorageBackend() - Constructor for class com.libremobileos.yifan.face.VolatileFaceStorageBackend

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