百度人脸识别过程记录(1)

本文链接： https://blog.csdn.net/weixin_41290949/article/details/102578991
<?php
header("Content-Type: text/html;charset=utf-8");
header("Content-type: application/json");

/*var_dump($_FILES['pic']);*/

/*
	 * 1.百度AI-人脸识别，access_token获取；
	 * 向API服务地址使用POST发送请求，必须在URL中带上参数access_token;
	 * 采用人脸识别接口V3版本；
	 */
function request_post($url = '', $param = '')
{
	if (empty($url) || empty($param)) {
		return false;
	}

	$postUrl  = $url;
	$curlPost = $param;
	$curl     = curl_init();//初始化curl
	curl_setopt($curl, CURLOPT_URL, $postUrl);//抓取指定网页
	curl_setopt($curl, CURLOPT_HEADER, 0);//设置header
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
	curl_setopt($curl, CURLOPT_POST, 1);//post提交方式
	curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
	$data = curl_exec($curl);//运行curl
	curl_close($curl);

	return $data;
}

$url                        = 'https://aip.baidubce.com/oauth/2.0/token';
$post_data['grant_type']    = 'client_credentials';
$post_data['client_id']     = '';
$post_data['client_secret'] = '';
$o                          = "";
foreach ($post_data as $k => $v) {
	$o .= "$k=" . urlencode($v) . "&";
}
$post_data = substr($o, 0, -1);

//获取百度AI接口access_token；
$res_acc = json_decode(request_post($url, $post_data), true);

//var_dump($res_acc);

//上传图片处理，百度AI人脸识别图片格式支持PNG、JPG、JPEG、BMP;
if (isset($_FILES['pic']) && $_FILES['pic']['error'] == 0) {
	$name = md5(time());
	$ext  = explode(".", $_FILES['pic']['name']);
	$ext  = end($ext);
	$full = $name . "." . $ext;
	$rs   = move_uploaded_file($_FILES['pic']['tmp_name'], './upload/' . $full);
	if (!$rs) {
		die('上传图片出错');
	}

	//上传成功后,获取图片地址
	$pic = "https://datav.qiaodu.net/face/upload/" . $full;
	//转为Base64格式编码，不包含图片头的data:image/jpg;base64；
	$base64_img = base64_encode(file_get_contents($pic));

	/*
 	* 1.人脸检测
 	* 检测图片中的人脸并标记出位置信息;
	* 采用人脸识别接口V3版本；
	*/

	//检测请求参数；
	$img_info[]             = '';
	$img_info["image"]      = $base64_img;
	$img_info["image_type"] = "BASE64";
	$img_info["face_field"] = "faceshape,facetype";

	//人脸检测与分析;
	$url_info   = 'https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token=' . $res_acc['access_token'];
	$bodys_info = json_encode($img_info, JSON_UNESCAPED_SLASHES);//防止/或"转义；
	$res_info   = json_decode(request_post($url_info, $bodys_info), true);


	//如图片无人脸，退出；
	if (count($res_info['result']['face_num']) == 0) {
		die('没有检测出人脸');
	}

	var_dump($res_info);

	/*
	 * 2.创建人脸库
	 * 用于向人脸库中新增用户，及组内用户的人脸图片；
	 * 采用人脸识别接口V3版本；
	 */

	//前端参数传递；
	$user_id   = "01025623";
	$user_info = "Poleung";

	//百度AI检测请求参数；
	$img_addinfo["image"]            = $base64_img;
	$img_addinfo["image_type"]       = "BASE64";
	$img_addinfo["group_id"]         = "train";//用户组id，百度人脸库管理默认设置组别;
	$img_addinfo["user_id"]          = $user_id;//用户id
	$img_addinfo["user_info"]        = $user_info;//用户资料
	$img_addinfo["quality_control"]  = "LOW";//图片质量控制
	$img_addinfo["liveness_control"] = "NONE";//活体检测控制
	$img_addinfo["action_type"]      = "APPEND";//user_id重复注册时，新注册的图片操作方式;

	$url_add   = 'https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/add?access_token=' . $res_acc['access_token'];
	$bodys_add = json_encode($img_addinfo, JSON_UNESCAPED_SLASHES);
	$res_add   = json_decode(request_post($url_add, $bodys_add), true);
	echo json_encode($res_add["error_msg"]);

}
百度人脸识别过程记录(1)

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