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  • API

    • # wx.faceDetect(Object object)

    Start from base library version 2.18.0. Please remaining backward compatible.

    with Promise style call: Not supported

    Mini Program plugin: Not supported

    Face recognition, you need to pass wx.initFaceDetect Once initialized, frame data returned using the camera interface is recommended

    # parameter

    # Object object

    attribute type Default values Required Introductions
    frameBuffer ArrayBuffer yes Image pixel data, each of four items representing a pixel RGBA
    width number yes Image width
    height number yes Image height
    enablePoint boolean false no Whether to return the face of the current image 106 (Point)
    enableConf boolean false no Whether to return the confidence level of the face of the current image (indicating organ occlusion)
    enableAngle boolean false no Whether to return face angle information of current image
    enableMultiFace boolean false no Whether to return information about multiple faces
    success function no Interface calls the successful callback function
    fail function no Interface calls failed callback functions
    complete function no Callback function at the end of an interface call (both successful and unsuccessful calls are executed)

    # object.success callback

    # parameter
    # Object res
    attribute type Introductions
    detectRect Object Face positive box value, the object contains height, weight, originX, originY 初始值
    x number If the face cannot be detected, then -1
    and number If the face cannot be detected by the center point of the face; -1
    pointArray Array.&ltObject&gt Face 106 An array of dot positions each object contains x and and
    confArray Object Face confidence, range of values [0, 1], the greater the value, the higher the confidence (less occlusion)
    angleArray Object Face angle information, value range [-1, 1]The closer the values are, 0 The more you look at the camera,
    faceInfo Array.&ltObject&gt Face information in enable multi-face mode, each object contains the above other attributes

    res.confArray Structure

    attribute type Introductions
    global number Overall credibility
    leftEye number Left eye credibility
    rightEye number Right eye credibility
    mouth number Mouth credibility
    nose number Nose credibility

    res.angleArray Structure

    attribute type Introductions
    pitch number Pitch angle (nod)
    yaw number Yaw angle (shake head)
    roll number Tumbling angle (left and right tilt)