ngx-scanner-face

KO | EN

gitlite — search

#javascript #python #hacktoberfest #react #ai #typescript #llm #go #golang #android #machine-learning #rust #deep-learning #linux

ngx-scanner-face

(★ 13)

This library is built to provide a solution analysis of human face recognition. This library analyzes each face and provides statistics for Angular web applications easily.

ngx-scanner-face Latest Version Download

Download Latest Version (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# ngx-scanner-face

This library is built to provide a solution analysis of human face recognition.\
This library analyzes each face and provides statistics for Angular web applications easily.\
This [Github](https://id1945.github.io/ngx-scanner-face/).

![Logo](https://raw.githubusercontent.com/id1945/ngx-scanner-face/master/ngx-scanner-face.png)

## Installation
Install `ngx-scanner-face` from `npm`:
```bash
npm install ngx-scanner-face@<version> --save
```

Add wanted package to NgModule imports:
```typescript
import { NgxScannerFaceModule } from 'ngx-scanner-face';
@NgModule({
  imports: [
    NgxScannerFaceModule
  ]
})
```

<details><summary>Camera :hammer_and_wrench:</summary>

```html
<ngx-scanner-face #scanner="scanner" [isAuto]="true"></ngx-scanner-face>

{{scanner.data.value | json}}
{{scanner.data | async | json}}
```
</details>

<details><summary>Image src :hammer_and_wrench:</summary>

```html
<ngx-scanner-face #scanner="scanner" [src]="'http://domain.com/picture.png'"></ngx-scanner-face>

{{scanner.data.value | json}}
{{scanner.data | async | json}}
```
</details>

<details><summary>Select files :hammer_and_wrench:</summary>

```typescript
import { NgxScannerFaceService, ScannerFaceConfig, ScannerFaceResult } from 'ngx-scanner-face';

public scannerConfig: ScannerFaceConfig = {};

public scannerResult: ScannerFaceResult[] = [];

constructor(private face: NgxScannerFaceService) {}

public onSelects(files: any) {
  this.face.loadFiles(files, this.scannerConfig).subscribe((res: ScannerFaceResult[]) => {
    this.scannerResult = res;
  });
}
```

```html
<input #file type="file" (change)="onSelects(file.files)" [multiple]="'multiple'" [accept]="'.jpg, .png'"/>

### API Documentation

<details><summary>Input :old_key:</summary>

| Field | Description | Type | Default |
| --- | --- | --- | --- |
| [src] | image url | string | - |
| [isAuto] | auto camera | boolean | false |
| [fps] | frames/ms | number | 30 |
| [timeoutDetect]| detect faces/ms | number | 1000 |
| [style] | style for canvas and video | Object | null |
| [videoStyle] | style for video | Object | null |
| [canvasStyle] | style for canvas | Object | null |
| [constraints] | setting video | MediaStreamConstraints | ``` { audio: false, video: true }``` |
| [env] | env config | <Env> | ``` { perfadd: false } ``` |
| [draw] | draw config | <DrawOptions> | ``` { font: 'monospace', lineHeight: 20 }``` |
| [human] | user configuration for human, used to fine-tune behavior | <Config> | ``` {...} ``` |
| [config] | Config all | BaseConfig | ``` { src:..., isAuto:..., isLoading:..., fps:..., env:..., draw:..., human:..., style:..., constraints:... } ``` |

</details>

<details><summary>Output :old_key:</summary>

| Field     | Description     | Type        | Default     |
| ---       | ---             | ---         | ---         |
| (event)   | Data            | Result      | -           |

</details>

<details><summary>Global variable in component :old_key:</summary>

| Field | Description | Type | Default |
| --- | --- | --- | --- | 
| isStart | start status | boolean | false |
| isPause | pause status | boolean | false |
| isLoading | loading status | boolean | false |
| isTorch | flashlight status | boolean | false |
| data | data | BehaviorSubject<Result> | {} |
| devices | devices | BehaviorSubject<Device[]> | [] |
| deviceIndexActive | device index | number | 0 |

</details>

<details><summary>Global event in component :old_key:</summary>

| Field       | Description               | Type                      | Default     |
| ---         | ---                       | ---                       | ---         |   
| (start)     | start camera              | AsyncSubject              | -           |
| (stop)      | stop camera               | AsyncSubject              | -           |
| (play)      | play video                | AsyncSubject              | -           |
| (pause)     | pause video               | AsyncSubject              | -           |
| (torcher)   | toggle on/off flashlight  | AsyncSubject              | -           |
| (loadImage) | load image from src       | AsyncSubject              | -           |
| (download)  | download image form video | AsyncSubject              | -           |

</details>

<details><summary>Global event in service :old_key:</summary>

| Field | Description | Type | Default |
| --- | --- | --- | --- | 
| (toBase64) | used for file selection | AsyncSubject<ScannerFaceResult> | - |
| (loadFiles) | used for file selection | AsyncSubject<ScannerFaceResult> | - |
| (streamToBase64) | used for with camera scanner | AsyncSubject<Result> | - |
| (streamToBlobURL) | used for with camera scanner | AsyncSubject<Result> | - |

</details>

#### Models :magnet:
 
<details><summary>ScannerFaceConfig</summary>

```typescript
interface ScannerFaceConfig {
 src?: string;
 isAuto?: boolean;
 isLoading?: boolean;
 fps?: number;
 timeoutDetect?: number;
 env?: Partial<Env>;
 draw?: Partial<DrawOptions>;
 human?: Partial<Config>;
 constraints?: MediaStreamConstraints;
}
```
</details>

<details><summary>ScannerFaceResult</summary>

```typescript
interface ScannerFaceResult {
 file?: File;
 name?: string;
 url?: string;
 blob?: any;
 base64?: string;
 result?: Result;
}
```
</details>

<details><summary>Device</summary>

```typescript
interface Device {
 deviceId: string;
 kind: string;
 label: string;
 groupId: string;
}
```
</details>

```typescript
class Env {
 /** Running in Browser */
 browser: boolean;
 /** Running in NodeJS */
 node: boolean;
 /** Running in WebWorker thread */
 worker: boolean;
 /** Detected platform */
 platform: string;
 /** Detected agent */
 agent: string;
 /** List of supported backends */
 backends: string[];
 /** Has any work been performed so far */
 initial: boolean;
 /** Are image filters supported? */
 filter: boolean | undefined;
 /** TFJS instance details */
 tfjs: {
 version: undefined | string;
 };
 /** Is offscreenCanvas supported? */
 offscreen: undefined | boolean;
 /** Are performance counter instant values or additive */
 perfadd: boolean;
 /** If using tfjs-node get version of underlying tensorflow shared library and if gpu acceleration is enabled */
 tensorflow: {
 version: undefined | string;
 gpu: undefined | boolean;
 };
 /** WASM detected capabilities */
 wasm: {
 supported: undefined | boolean;
 backend: undefined | boolean;
 simd: undefined | boolean;
 multithread: undefined | boolean;
 };
 /** WebGL detected capabilities */
 webgl: {
 supported: undefined | boolean;
 backend: undefined | boolean;
 version: undefined | string;
 renderer: undefined | string;
 };
 /** WebGPU detected capabilities */
 webgpu: {
 supported: undefined | boolean;
 backend: undefined | boolean;
 adapter: undefined | string;
 };
 /** CPU info */
 cpu: {
 model: undefined | string;
 flags: string[];
 };
 /** List of supported kernels for current backend */
 kernels: string[];
 /** MonkeyPatch for Canvas */
 Canvas: undefined;
 /** MonkeyPatch for Image */
 Image: undefined;
 /** MonkeyPatch for ImageData */
 ImageData: undefined;
 constructor();
 /** update backend information */
 updateBackend(): Promise<void>;
 /** update cpu information */
 updateCPU(): void;
}
```
</details>

<details><summary>Config</summary>

```typescript
interface Config {
 /** Backend used for TFJS operations
 * valid build-in backends are:
 * - Browser: `cpu`, `wasm`, `webgl`, `humangl`, `webgpu`
 * - NodeJS: `cpu`, `wasm`, `tensorflow`
 * default: `webgl` for browser and `tensorflow` for nodejs
 */
 backend: '' | 'cpu' | 'wasm' | 'webgl' | 'humangl' | 'tensorflow' | 'webgpu';
 /** Path to *.wasm files if backend is set to `wasm`
 *
 * default: auto-detects to link to CDN `jsdelivr` when running in browser
 */
 wasmPath: string;
 /** Force WASM loader to use platform fetch
 *
 * default: auto-detects to link to CDN `jsdelivr` when running in browser
 */
 wasmPlatformFetch: boolean;
 /** Print debug statements to console
 *
 * default: `true`
 */
 debug: boolean;
 /** Perform model loading and inference concurrently or sequentially
 *
 * default: `true`
 */
 async: boolean;
 /** What to use for `human.warmup()`
 * - warmup pre-initializes all models for faster inference but can take significant time on startup
 * - used by `webgl`, `humangl` and `webgpu` backends
 *
 * default: `full`
 */
 warmup: '' | 'none' | 'face' | 'full' | 'body';
 /** Base model path (typically starting with file://, http:// or https://) for all models
 * - individual modelPath values are relative to this path
 *
 * default: `../models/` for browsers and `file://models/` for nodejs
 */
 modelBasePath: string;
 /** Cache models in IndexDB on first sucessfull load
 * default: true if indexdb is available (browsers), false if its not (nodejs)
 */
 cacheModels: boolean;
 /** Validate kernel ops used in model during model load
 * default: true
 * any errors will be printed on console but will be treated as non-fatal
 */
 validateModels: boolean;
 /** Cache sensitivity
 * - values 0..1 where 0.01 means reset cache if input changed more than 1%
 * - set to 0 to disable caching
 *
 * default: 0.7
 */
 cacheSensitivity: number;
 /** Explicit flags passed to initialize TFJS */
 flags: Record<string, unknown>;
 /** Software Kernels
 * Registers software kernel ops running on CPU when accelerated version of kernel is not found in the current backend
 */
 softwareKernels: boolean;
 /** Perform immediate garbage collection on deallocated tensors instead of caching them */
 deallocate: boolean;
 /** Internal Variable */
 skipAllowed: boolean;
 /** Filter config {@link FilterConfig} */
 filter: Partial<FilterConfig>;
 /** Gesture config {@link GestureConfig} */
 gesture: Partial<GestureConfig>;
 /** Face config {@link FaceConfig} */
 face: Partial<FaceConfig>;
 /** Body config {@link BodyConfig} */
 body: Partial<BodyConfig>;
 /** Hand config {@link HandConfig} */
 hand: Partial<HandConfig>;
 /** Object config {@link ObjectConfig} */
 object: Partial<ObjectConfig>;
 /** Segmentation config {@link SegmentationConfig} */
 segmentation: Partial<SegmentationConfig>;
}
```

</details>

<details><summary>DrawOptions</summary>

```typescript
interface DrawOptions {
  /** draw line color */
  color: string;
  /** alpha value used for lines */
  alpha: number;
  /** label color */
  labelColor: string;
  /** label shadow color */
  shadowColor: string;
  /** label font */
  font: string;
  /** line spacing between labels */
  lineHeight: number;
  /** line width for drawn lines */
  lineWidth: number;
  /** size of drawn points */
  pointSize: number;
  /** draw rounded boxes by n pixels */
  roundRect: number;
  /** should points be drawn? */
  drawPoints: boolean;
  /** should labels be drawn? */
  drawLabels: boolean;
  /** should face attention keypoints be highlighted */
  drawAttention: boolean;
  /** should detected gestures be drawn? */
  drawGestures: boolean;
  /** should draw boxes around detection results? */
  drawBoxes: boolean;
  /** should draw polygons from detection points? */
  drawPolygons: boolean;
  /** should draw gaze arrows? */
  drawGaze: boolean;
  /** should fill polygons? */
  fillPolygons: boolean;
  /** use z-coordinate when available */
  useDepth: boolean;
  /** should lines be curved? */
  useCurves: boolean;
}
```

</details>
 
<details><summary>Result</summary>

```typescript
interface Result {
 /** {@link FaceResult}: detection & analysis results */
 face: FaceResult[];
 /** {@link BodyResult}: detection & analysis results */
 body: BodyResult[];
 /** {@link HandResult}: detection & analysis results */
 hand: HandResult[];
 /** {@link GestureResult}: detection & analysis results */
 gesture: GestureResult[];
 /** {@link ObjectResult}: detection & analysis results */
 object: ObjectResult[];
 /** global performance object with timing values for each operation */
 performance: Record<string, number>;
 /** optional processed canvas that can be used to draw input on screen */
 canvas?: AnyCanvas | null;
 /** timestamp of detection representing the milliseconds elapsed since the UNIX epoch */
 readonly timestamp: number;
 /** getter property that returns unified persons object */
 persons: PersonResult[];
 /** Last known error message */
 error: string | null;
 /** ===================== */
 /** start version 1.1.6 */
 /** ===================== */
 /** Draw frames for detected faces */
 /** In this case the scanner will not drawn frame on the original image */
 /** Need to use service to handle streamToBase64 and streamToBlobURL */
 /** This solves the problem related to perfomance */
 canvas2: HTMLCanvasElement;
 /** using for service with streamToBase64() */
 base64: string;
 /** using for service with streamToBlobURL() */
 blobUrl?: string;
}
```

</details>

#### Models in Config :magnet:

<details><summary>FilterConfig</summary>

```typescript
interface FilterConfig {
 /** are image filters enabled? */
 enabled: boolean;
 /** perform image histogram equalization
 * - equalization is performed on input as a whole and detected face before its passed for further analysis
 */
 equalization: boolean;
 /** resize input width
 * - if both width and height are set to 0, there is no resizing
 * - if just one is set, second one is scaled automatically
 * - if both are set, values are used as-is
 */
 width: number;
 /** resize input height
 * - if both width and height are set to 0, there is no resizing
 * - if just one is set, second one is scaled automatically
 * - if both are set, values are used as-is
 */
 height: number;
 /** return processed canvas imagedata in result */
 return: boolean;
 /** flip input as mirror image */
 flip: boolean;
 /** range: -1 (darken) to 1 (lighten) */
 brightness: number;
 /** range: -1 (reduce contrast) to 1 (increase contrast) */
 contrast: number;
 /** range: 0 (no sharpening) to 1 (maximum sharpening) */
 sharpness: number;
 /** range: 0 (no blur) to N (blur radius in pixels) */
 blur: number;
 /** range: -1 (reduce saturation) to 1 (increase saturation) */
 saturation: number;
 /** range: 0 (no change) to 360 (hue rotation in degrees) */
 hue: number;
 /** image negative */
 negative: boolean;
 /** image sepia colors */
 sepia: boolean;
 /** image vintage colors */
 vintage: boolean;
 /** image kodachrome colors */
 kodachrome: boolean;
 /** image technicolor colors */
 technicolor: boolean;
 /** image polaroid camera effect */
 polaroid: boolean;
 /** range: 0 (no pixelate) to N (number of pixels to pixelate) */
 pixelate: number;
}
```
</details>
 
<details><summary>GestureConfig</summary>

```typescript
interface GestureConfig {
 /** is gesture detection enabled? */
 enabled: boolean;
}
```
</details>
 
<details><summary>FaceConfig</summary>

```typescript
interface FaceConfig extends GestureConfig {
 detector: Partial<FaceDetectorConfig>;
 mesh: Partial<FaceMeshConfig>;
 attention: Partial<FaceAttentionConfig>;
 iris: Partial<FaceIrisConfig>;
 description: Partial<FaceDescriptionConfig>;
 emotion: Partial<FaceEmotionConfig>;
 antispoof: Partial<FaceAntiSpoofConfig>;
 liveness: Partial<FaceLivenessConfig>;
 gear: Partial<FaceGearConfig>;
}
```
</details>
 
<details><summary>BodyConfig</summary>

```typescript
interface BodyConfig extends GenericConfig {
 /** maximum number of detected bodies */
 maxDetected: number;
 /** minimum confidence for a detected body before results are discarded */
 minConfidence: number;
}
```
</details>
 
<details><summary>HandConfig</summary>

```typescript
interface HandConfig extends GenericConfig {
 /** should hand rotation correction be performed after hand detection? */
 rotation: boolean;
 /** minimum confidence for a detected hand before results are discarded */
 minConfidence: number;
 /** minimum overlap between two detected hands before one is discarded */
 iouThreshold: number;
 /** maximum number of detected hands */
 maxDetected: number;
 /** should hand landmarks be detected or just return detected hand box */
 landmarks: boolean;
 detector: {
 /** path to hand detector model json */
 modelPath?: string;
 };
 skeleton: {
 /** path to hand skeleton model json */
 modelPath?: string;
 };
}
```
</details>
 
 
<details><summary>ObjectConfig</summary>

```typescript
interface ObjectConfig extends GenericConfig {
 /** minimum confidence for a detected objects before results are discarded */
 minConfidence: number;
 /** minimum overlap between two detected objects before one is discarded */
 iouThreshold: number;
 /** maximum number of detected objects */
 maxDetected: number;
}
```
</details>
 
<details><summary>SegmentationConfig</summary>

```typescript
interface SegmentationConfig extends GenericConfig {
 /** blur segmentation output by <number> pixels for more realistic image */
 blur: number;
}
```
</details>

#### Models in Result :magnet:

<details><summary>FaceResult</summary>

```typescript
interface FaceResult {
 /** face id */
 id: number;
 /** overall face score */
 score: number;
 /** detection score */
 boxScore: number;
 /** mesh score */
 faceScore: number;
 /** detected face box */
 box: Box;
 /** detected face box normalized to 0..1 */
 boxRaw: Box;
 /** detected face mesh */
 mesh: Point[];
 /** detected face mesh normalized to 0..1 */
 meshRaw: Point[];
 /** face contours as array of 2d points normalized to 0..1 */
 /** face contours as array of 2d points */
 /** mesh keypoints combined into annotated results */
 annotations: Record<FaceLandmark, Point[]>;
 /** detected age */
 age?: number;
 /** detected gender */
 gender?: Gender;
 /** gender detection score */
 genderScore?: number;
 /** detected emotions */
 emotion?: {
 score: number;
 emotion: Emotion;
 }[];
 /** detected race */
 race?: {
 score: number;
 race: Race;
 }[];
 /** face descriptor */
 embedding?: number[];
 /** face iris distance from camera */
 iris?: number;
 /** face anti-spoofing result confidence */
 real?: number;
 /** face liveness result confidence */
 live?: number;
 /** face rotation details */
 rotation?: {
 angle: {
 roll: number;
 yaw: number;
 pitch: number;
 };
 matrix: [number, number, number, number, number, number, number, number, number];
 gaze: {
 bearing: number;
 strength: number;
 };
 } | null;
 /** detected face as tensor that can be used in further pipelines */
 tensor?: Tensor;
}
```
</details>

<details><summary>BodyResult</summary>

```typescript
interface BodyResult {
 /** body id */
 id: number;
 /** body detection score */
 score: number;
 /** detected body box */
 box: Box;
 /** detected body box normalized to 0..1 */
 boxRaw: Box;
 /** detected body keypoints */
 keypoints: BodyKeypoint[];
 /** detected body keypoints combined into annotated parts */
 annotations: Record<BodyAnnotation, Point[][]>;
}
```
</details>

<details><summary>HandResult</summary>

```typescript
interface HandResult {
 /** hand id */
 id: number;
 /** hand overal score */
 score: number;
 /** hand detection score */
 boxScore: number;
 /** hand skelton score */
 fingerScore: number;
 /** detected hand box */
 box: Box;
 /** detected hand box normalized to 0..1 */
 boxRaw: Box;
 /** detected hand keypoints */
 keypoints: Point[];
 /** detected hand class */
 label: HandType;
 /** detected hand keypoints combined into annotated parts */
 annotations: Record<Finger, Point[]>;
 /** detected hand parts annotated with part gestures */
 landmarks: Record<Finger, {
 curl: FingerCurl;
 direction: FingerDirection;
 }>;
}
```
</details>

<details><summary>GestureResult</summary>

```typescript
type GestureResult = {
 'face': number;
 gesture: FaceGesture;
} | {
 'iris': number;
 gesture: IrisGesture;
} | {
 'body': number;
 gesture: BodyGesture;
} | {
 'hand': number;
 gesture: HandGesture;
};
```
</details>

<details><summary>ObjectResult</summary>

```typescript
interface ObjectResult {
  /** object id */
  id: number;
  /** object detection score */
  score: number;
  /** detected object class id */
  class: number;
  /** detected object class name */
  label: ObjectType;
  /** detected object box */
  box: Box;
  /** detected object box normalized to 0..1 */
  boxRaw: Box;
}

```
</details>

<details><summary>PersonResult</summary>

```typescript
interface PersonResult {
 /** person id */
 id: number;
 /** face result that belongs to this person */
 face: FaceResult;
 /** body result that belongs to this person */
 body: BodyResult | null;
 /** left and right hand results that belong to this person */
 hands: {
 left: HandResult | null;
 right: HandResult | null;
 };
 /** detected gestures specific to this person */
 gestures: GestureResult[];
 /** box that defines the person */
 box: Box;
 /** box that defines the person normalized to 0..1 */
 boxRaw?: Box;
}
```
</details>

#### Models in FaceConfig :magnet:

<details><summary>FaceDetectorConfig</summary>

```typescript
interface FaceDetectorConfig extends GenericConfig {
 /** is face rotation correction performed after detecting face?
 * used to correctly analyze faces under high angles
 */
 rotation: boolean;
 /** maximum number of detected faces */
 maxDetected: number;
 /** minimum confidence for a detected face before results are discarded */
 minConfidence: number;
 /** minimum overlap between two detected faces before one is discarded */
 iouThreshold: number;
 /** should child models perform on masked image of a face */
 mask: boolean;
 /** should face detection return processed and cropped face tensor that can with an external model for addtional processing?
 * if enabled it must be manually deallocated to avoid memory leak */
 return: boolean;
}
```
</details>

<details><summary>FaceMeshConfig</summary>

```typescript
interface FaceMeshConfig extends GenericConfig {
 /** Keep detected faces that cannot be verified using facemesh */
 keepInvalid: boolean;
}
```
</details>

<details><summary>FaceDescriptionConfig</summary>

```typescript
interface FaceDescriptionConfig extends GenericConfig {
 /** minimum confidence for a detected face before results are discarded */
 minConfidence: number;
}
```
</details>

<details><summary>FaceEmotionConfig</summary>

```typescript
interface FaceEmotionConfig extends GenericConfig {
 /** minimum confidence for a detected face before results are discarded */
 minConfidence: number;
}
```
</details>

<details><summary>FaceGearConfig</summary>

```typescript
interface FaceGearConfig extends GenericConfig {
 /** minimum confidence for a detected race before results are discarded */
 minConfidence: number;
}
```
</details>
 
#### Support versions 
 
<table>
 <tr>
 <th colspan="2">Support versions</th>
 </tr>
 <tr>
 <td>Angular 16</td>
 <td>1.2.3</td>
 </tr>
 <tr>
 <td>Angular 12</td>
 <td>1.2.2</td>
 </tr>
</table>

#### Author Information

<table>
 <tr>
 <th colspan="2">Author Information</th>
 </tr>
 <tr>
 <td>Author</td>
 <td>DaiDH</td>
 </tr>
 <tr>
 <td>Phone</td>
 <td>+84845882882</td>
 </tr>
 <tr>
 <td>Country</td>
 <td>Vietnam</td>
 </tr>
</table>

#### To make this library more complete, please donate to me if you can!

<table>
 <tr>
 <th>Bitcoin</th>
 <th>Paypal</th>
 <th>MbBank</th>
 </tr>
 <tr>
 <td><img src="https://raw.githubusercontent.com/id1945/id1945/master/donate-bitcoin.png" width="182px"></td>
 <td><img src="https://raw.githubusercontent.com/id1945/id1945/master/donate-paypal.png" width="182px"></td>
 <td><img src="https://raw.githubusercontent.com/id1945/id1945/master/donate-mbbank.png" width="182px"></td>
 </tr>
</table>

![Vietnam](https://raw.githubusercontent.com/id1945/id1945/master/vietnam.gif)

ngx-scanner-face

ngx-scanner-face Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

ngx-scanner-face

ngx-scanner-face Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

Download README