Facial Landmarks API

Accurately detect and analyze facial landmarks with our Facial Landmarks Detection API, supporting up to 201 key points for precise facial feature and contour identification.

Our Facial Landmarks Detection API provides an advanced solution for detecting and analyzing facial landmarks with high precision. This API supports the detection of 72, 150, and 201 key points, covering essential facial features such as eyes, eyebrows, lips, and nose contours. Additionally, it offers precise localization of facial features, including eyebrows, eyes, nose, mouth, and cheeks, as well as accurate identification of facial contours for both single and multiple faces. The API also includes face angle estimation, allowing for the determination of various facial poses in the image. Ideal for developers in the fields of photography, augmented reality, and biometric security, this API enables enhanced facial recognition and image processing capabilities. Integrate our Facial Landmarks Detection API into your application to provide users with robust and precise facial analysis tools, improving the accuracy and functionality of your facial recognition and image editing solutions.

Application Scenarios

  • Interactive entertainment: It supports accurate positioning of facial features and contours, and can realize interactive entertainment functions such as special effects camera, dynamic stickers, and small video play.
  • Facial feature analysis: support the accurate positioning of facial features and contours to achieve facial feature analysis, landing in intelligent medical beauty and other products.
  • Beauty shooting: high-precision face key points can be shaped for beauty, landing in a variety of beauty scenarios such as pictures, videos, and live broadcasts.

Featured Advantages

  • High-precision algorithm: Based on a large amount of precision labeled data training, the algorithm is highly accurate, perfectly fits the face and adapts to various face postures and expressions.
  • Wide range of applications: support different photos and face sizes, support various indoor, outdoor and other environmental scenarios, and facilitate various business expansion.
  • Stable and reliable service: provide stable and accurate high traffic service, and support millisecond recognition response.

API Documentation

Endpoints


Accurately detect and analyze facial landmarks with our Facial Landmarks Detection API, supporting up to 201 key points for precise facial feature and contour identification.

Request

Image requirements

  • Image format: JPEG, JPG, BMP, PNG
  • Image size: No more than 8 MB.
  • Image resolution: Less than 1920x1080px.

Body

Field Required Type Scope Defaults Example Description
image YES file        
max_face_num NO integer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
1   The maximum number of faces to process. The default value is 1 (only the face with the largest area in the image is detected).
face_field NO string
  • age
  • gender
  • landmark4
  • landmark72
  • landmark150
  • landmark201
  age,gender,landmark4 Returns more information about the face (by default only face_token, face frame, probability and rotation angle are returned).
  • age: Age information.
  • gender: Gender information.
  • landmark4: 4 feature points.
  • landmark72: 72 feature points.
  • landmark150: 150 feature points.
  • landmark201: 201 feature points.

Response

Public Parameters

Viewing Public Parameters and Error Codes

Business Parameters

Field Type Scope Description
result object   The content of the result data returned.
+face_num integer   The number of faces in the picture.
+face_list array   List of face information.
++face_token string   Face Token.
++location object   The position of the face in the picture.
+++left float   The distance of the face area from the left border.
+++top float   The distance of the face area from the upper boundary.
+++width float   The width of the face area.
+++height float   The height of the face area.
+++rotation integer [-180, 180] The clockwise rotation angle of the face frame with respect to the vertical direction.
++face_probability float [0, 1] Face confidence.
++angle object   Face rotation parameters, refer to Face Spatial Pose Angle Reference for detailed description.
+++yaw float [-90, 90] The left and right rotation angle of 3D rotation.
+++pitch float [-90, 90] Three-dimensional rotation of the pitch angle.
+++roll float [-180, 180] In-plane rotation angle.
++age float   Age.
++gender object   Gender information.
+++type string
  • male
  • female
 
+++probability float [0, 1] Gender confidence.
++landmark4 array   4 feature points.
++landmark72 array   72 feature points. Refer to 72 feature points for details.
++landmark150 object   150 feature points. Refer to 150 feature points for details.
++landmark201 object   201 feature points. Refer to 201 feature points for details.


                                                                            
POST https://zylalabs.com/api/4439/facial+landmarks+api/5452/facial+landmarks
                                                                            
                                                                        

Facial Landmarks - Endpoint Features

Object Description
Request Body [Required] File Binary
Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {
  "request_id":     "",
  "log_id":         "",
  "error_code":     0,
  "error_code_str": "",
  "error_msg":      "",
  "error_detail":   {
    "status_code":  200,
    "code":         "",
    "code_message": "",
    "message":      ""
  },
  "result": {
    "face_num": "",
    "face_list": [
      {
        "face_token": "",
        "location": {
          "left": 0,
          "top": 0,
          "width": 0,
          "height": 0,
          "rotation": 0
        }
      }
    ],
    "face_probability": 0,
    "angle": [
      {
        "yaw": 0,
        "pitch": 0,
        "roll": 0
      }
    ],
    "age": 0,
    "gender": [
      {
        "type": "",
        "probability": 0
      }
    ],
    "landmark4": [],
    "landmark72": [],
    "landmark150": {},
    "landmark201": {}
  }
}
                                                                                                                                                                                                                    
                                                                                                    

Facial Landmarks - CODE SNIPPETS


    curl --location 'https://zylalabs.com/api/4439/facial+landmarks+api/5452/facial+landmarks' \
    --header 'Content-Type: application/json' \ 
    --form 'image=@"FILE_PATH"'


API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Facial Landmarks API REST API, simply include your bearer token in the Authorization header.
Headers
Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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Our Facial Landmarks Detection API provides an advanced solution for detecting and analyzing facial landmarks with high precision. This API supports the detection of 72, 150, and 201 key points, covering essential facial features such as eyes, eyebrows, lips, and nose contours. Additionally, it offers precise localization of facial features, including eyebrows, eyes, nose, mouth, and cheeks, as well as accurate identification of facial contours for both single and multiple faces. The API also includes face angle estimation, allowing for the determination of various facial poses in the image.

Facial Recognition: Enhancing the accuracy of facial recognition systems by identifying key facial features. Animation and Gaming: Creating realistic facial animations by mapping facial landmarks for character models. Augmented Reality (AR): Enabling AR applications to accurately place virtual elements on users’ faces, such as filters and masks. Beauty and Cosmetics: Powering virtual makeup and beauty apps to apply cosmetics accurately on facial features. Photography and Videography: Improving facial detection for better focusing and exposure settings in cameras.

High Precision: Provides accurate identification of key facial features, enhancing the effectiveness of applications relying on facial analysis. Real-Time Processing: Capable of identifying facial landmarks in real time, making it suitable for live applications such as AR and security monitoring. Versatility: Applicable to various fields, including facial recognition, animation, AR, medical diagnostics, beauty, photography, security, and human-computer interaction. Consistency: Delivers reliable and consistent results across different faces and conditions.

Yes, we do have more detailed [API documentation](https://www.ailabtools.com/doc/ai-portrait/analysis/face-key-points/api-marketplace) available. You can access it on our website or by contacting our support team for assistance.

Computer Vision Researchers and Engineers: Professionals and academics who work on developing facial recognition systems, emotion detection algorithms, and other applications requiring precise facial landmark localization. Augmented Reality (AR) and Virtual Reality (VR) Developers: Individuals creating immersive experiences that involve facial tracking and interaction. Healthcare Practitioners and Researchers: Those studying facial anatomy for medical diagnosis, facial reconstruction, or facial expression analysis in psychological research. Digital Artists and Animators: Creators who use facial landmarks for character animation, facial morphing, and other visual effects.

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