DetectFace可以根据输入图片，检测出图片中的人脸并给出每张人脸定位和关键点信息。

图片限制

  • 请求格式：JPEG、JPG、PNG、BMP。
  • 图像大小：图像大小小于等于3M。
  • 图像分辨率：图片大小要求5*5像素以上。

调试

您可以在OpenAPI Explorer中直接运行该接口，免去您计算签名的困扰。运行成功后，OpenAPI Explorer可以自动生成SDK代码示例。

请求参数

名称 类型 是否必选 示例值 描述
Action String 是 DetectFace

系统规定参数。取值：DetectFace。
ImageURL String 是 https://viapi-demo.oss-cn-shanghai.aliyuncs.com/viapi-demo/images/DetectImageElements/detect-elements-src.png

图片url地址（http/https）。

返回数据

名称 类型 示例值 描述
RequestId String D6C24839-91A7-41DA-B31F-98F08EF80CC0

当前请求的request id。
Data Struct

返回的数据内容。
FaceCount Integer 1

检测出来的人脸个数。
LandmarkCount Integer 105

特征点数目，目前固定为105点（顺序：眉毛24点，眼睛32点，鼻子6点，嘴巴34点，外轮廓9点）。
FaceRectangles List 265

返回人脸矩形框，分别是[left, top, width, height]。如有多个人脸，则依次顺延，返回矩形框。例如有两个人脸则返回[left1, top1, width1, height1, left2, top2, width2, height2]。

FaceProbabilityList List 1.0

返回人脸概率，取值范围0~1。如有多个人脸，则依次顺延。如有两个人脸则返回[face_prob1, face_prob2]。

PoseList List 24.281335830688477

返回人脸姿态[yaw, pitch, roll]。

  • yaw为左右角度，取值[-90,90]。
  • pitch为上下角度，取值[-90,90]。
  • roll为平面旋转角度，取值[-180,180]。

如有多个人脸，则依次顺延。
Landmarks List 281.339599609375

特征点定位结果，每个人脸返回一组特征点位置，表示方式为（x0, y0, x1, y1, ……）；如有多个人脸，则依次顺延，返回定位浮点数。

Pupils List 301.26824951171875

左右两个瞳孔的中心点坐标和半径，每个人脸6个浮点数，顺序是[left_iris_cenpt.x, left_iris_cenpt.y, left_iris_radius, right_iris_cenpt.x, right_iris_cenpt.y, right_iris_radis]。

示例

请求示例

https://facebody.cn-shanghai.aliyuncs.com/?Action=DetectFace&<公共请求参数>

正常返回示例

JSON 格式 

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    "LandmarkCount": 105,
    "FaceProbabilityList": [
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    "Pupils": [
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  }
}

错误码

具体请参见常见错误码。