一、百度api
1、api之CV
更新……
二、face++旷视api
1、api之CV：Detect API 文档中心/Detect API
描述
传入图片进行人脸检测和人脸分析。
可以检测图片内的所有人脸，对于每个检测出的人脸，会给出其唯一标识 face_token，可用于后续的人脸分析、人脸比对等操作。对于正式 API Key，支持指定图片的某一区域进行人脸检测。
本 API 支持对检测到的人脸直接进行分析，获得人脸的关键点和各类属性信息。对于试用 API Key，最多只对人脸框面积最大的 5 个人脸进行分析，其他检测到的人脸可以使用 Face Analyze API 进行分析。对于正式 API Key，支持分析所有检测到的人脸。
关于 face_token
如果您需要将检测出的人脸用于后续的分析、比对等操作，建议将对应的 face_token 添加到 FaceSet 中。如果一个 face_token 在 72 小时内没有存放在任一 FaceSet 中，则该 face_token 将会失效。如果对同一张图片进行多次人脸检测，同一个人脸得到的 face_token 是不同的。
图片要求
图片格式：JPG(JPEG)，PNG
图片像素尺寸：最小 48*48 像素，最大 4096*4096 像素
图片文件大小：2 MB
最小人脸像素尺寸： 系统能够检测到的人脸框为一个正方形，正方形边长的最小值为图像短边长度的 48 分之一，最小值不低于 48 像素。 例如图片为 4096*3200 像素，则最小人脸像素尺寸为 66*66 像素。
请求返回的内容
r = requests.post(url=url, files=file, data=params)
print(points) #输出的内容为以下
{"image_id": "qgdLY0……PEg==", "request_id": "1531563……a1", "time_used": 166,
"faces": [{"landmark":
{
"contour_chin": {"y": 382, "x": 399},
"left_eye_upper_left_quarter": {"y": 218, "x": 327},
"mouth_lower_lip_right_contour1": {"y": 322, "x": 410},
"left_eye_bottom": {"y": 231, "x": 338},
"mouth_lower_lip_right_contour2": {"y": 329, "x": 419},
"contour_left7": {"y": 296, "x": 305},
"contour_left6": {"y": 283, "x": 301},
"contour_left5": {"y": 270, "x": 299},
"contour_left4": {"y": 257, "x": 296},
"contour_left3": {"y": 243, "x": 295},
"contour_left2": {"y": 230, "x": 295},
"contour_left1": {"y": 216, "x": 296},
"left_eye_lower_left_quarter": {"y": 230, "x": 328},
"contour_right1": {"y": 203, "x": 480},
"contour_right3": {"y": 230, "x": 484},
"contour_right2": {"y": 217, "x": 482},
"contour_right5": {"y": 257, "x": 484},
"contour_right4": {"y": 243, "x": 484},
"contour_right7": {"y": 284, "x": 481},
"left_eyebrow_left_corner": {"y": 207, "x": 310},
"right_eye_right_corner": {"y": 217, "x": 454},
"nose_bridge1": {"y": 220, "x": 386},
"nose_bridge3": {"y": 259, "x": 389},
"nose_bridge2": {"y": 239, "x": 387},
"right_eyebrow_upper_left_corner": {"y": 195, "x": 401},
"mouth_upper_lip_right_contour4": {"y": 320, "x": 409},
"mouth_upper_lip_right_contour1": {"y": 309, "x": 401},
"right_eye_left_corner": {"y": 225, "x": 412},
"left_eyebrow_upper_right_corner": {"y": 198, "x": 366},
"left_eyebrow_upper_middle": {"y": 190, "x": 335},
"mouth_lower_lip_right_contour3": {"y": 336, "x": 409},
"nose_left_contour3": {"y": 284, "x": 367},
"mouth_lower_lip_bottom": {"y": 340, "x": 395},
"mouth_upper_lip_right_contour2": {"y": 313, "x": 414},
"left_eye_top": {"y": 215, "x": 339},
"nose_left_contour1": {"y": 227, "x": 374},
"mouth_upper_lip_bottom": {"y": 322, "x": 394},
"mouth_upper_lip_left_contour2": {"y": 316, "x": 373},
"mouth_upper_lip_top": {"y": 312, "x": 393},
"mouth_upper_lip_left_contour1": {"y": 310, "x": 384},
"mouth_upper_lip_left_contour4": {"y": 322, "x": 378},
"right_eye_top": {"y": 209, "x": 432},
"mouth_upper_lip_right_contour3": {"y": 320, "x": 421},
"right_eye_bottom": {"y": 225, "x": 435},
"right_eyebrow_lower_left_corner": {"y": 202, "x": 403},
"mouth_left_corner": {"y": 324, "x": 362},
"nose_middle_contour": {"y": 292, "x": 391},
"right_eye_lower_right_quarter": {"y": 222, "x": 446},
"right_eyebrow_lower_right_quarter": {"y": 195, "x": 452},
"contour_right9": {"y": 310, "x": 476},
"mouth_right_corner": {"y": 319, "x": 426},
"right_eye_lower_left_quarter": {"y": 226, "x": 423},
"right_eye_center": {"y": 215, "x": 432},
"left_eye_upper_right_quarter": {"y": 219, "x": 351},
"right_eyebrow_lower_left_quarter": {"y": 198, "x": 419},
"left_eye_pupil": {"y": 221, "x": 340},
"contour_right8": {"y": 297, "x": 479},
"contour_left13": {"y": 363, "x": 346},
"left_eyebrow_lower_right_quarter": {"y": 203, "x": 350},
"left_eye_right_corner": {"y": 228, "x": 361},
"left_eyebrow_lower_right_corner": {"y": 206, "x": 364},
"mouth_upper_lip_left_contour3": {"y": 323, "x": 367},
"left_eyebrow_lower_left_quarter": {"y": 203, "x": 322},
"mouth_lower_lip_left_contour1": {"y": 324, "x": 378},
"mouth_lower_lip_left_contour3": {"y": 338, "x": 381},
"mouth_lower_lip_left_contour2": {"y": 332, "x": 370},
"contour_left9": {"y": 322, "x": 314},
"left_eye_lower_right_quarter": {"y": 230, "x": 350},
"contour_right6": {"y": 270, "x": 482},
"nose_tip": {"y": 278, "x": 390},
"right_eyebrow_upper_middle": {"y": 185, "x": 435},
"right_eyebrow_lower_middle": {"y": 195, "x": 436},
"left_eye_center": {"y": 221, "x": 340},
"right_eyebrow_upper_left_quarter": {"y": 188, "x": 417},
"right_eyebrow_right_corner": {"y": 196, "x": 468},
"right_eyebrow_upper_right_quarter": {"y": 186, "x": 453},
"contour_left16": {"y": 382, "x": 384},
"contour_left15": {"y": 378, "x": 370},
"contour_left14": {"y": 371, "x": 358},
"left_eyebrow_upper_right_quarter": {"y": 192, "x": 352},
"contour_left12": {"y": 355, "x": 336},
"contour_left11": {"y": 345, "x": 327},
"contour_left10": {"y": 334, "x": 320},
"left_eyebrow_lower_middle": {"y": 202, "x": 336},
"left_eyebrow_upper_left_quarter": {"y": 195, "x": 320},
"right_eye_upper_right_quarter": {"y": 210, "x": 445},
"nose_right_contour4": {"y": 286, "x": 407},
"nose_right_contour5": {"y": 289, "x": 399},
"nose_left_contour4": {"y": 288, "x": 374},
"nose_left_contour5": {"y": 290, "x": 382},
"nose_left_contour2": {"y": 267, "x": 370},
"nose_right_contour1": {"y": 225, "x": 399},
"nose_right_contour2": {"y": 264, "x": 407},
"nose_right_contour3": {"y": 280, "x": 414},
"left_eye_left_corner": {"y": 226, "x": 320},
"contour_right15": {"y": 373, "x": 428},
"contour_right14": {"y": 365, "x": 440},
"contour_right16": {"y": 379, "x": 415},
"contour_right11": {"y": 335, "x": 466},
"contour_right10": {"y": 323, "x": 472},
"contour_right13": {"y": 356, "x": 450},
"contour_right12": {"y": 346, "x": 458},
"contour_left8": {"y": 309, "x": 309},
"mouth_lower_lip_top": {"y": 324, "x": 393},
"right_eye_upper_left_quarter": {"y": 214, "x": 420},
"right_eye_pupil": {"y": 215, "x": 432}
},
"face_rectangle": {"width": 196, "top": 187, "left": 294, "height": 196},
"face_token": "52……8"}]
}
