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基于opencv的人脸检测的web应用

2024-07-08 04:27:36   228人阅读

参考资料

https://github.com/bsdnoobz/web-based-face-detect

http://opencv-code.com/projects/web-based-interface-for-face-detection-with-opencv/

http://www.cnblogs.com/findingsea/archive/2012/03/31/2427833.html

 

流程如下图

此处输入图片的描述

 

背景知识

php调用exe的返回

<html>　　<body>　　　　　　<?php　　　　　　　　system("F:\\xampp\\htdocs\\webcam2\\phptest.exe", $info);　　　　　　　　echo $info;　　　　　　?>　　</body></html>

在线人脸检测

  • 使用web摄像头
  • web-based-face-detect

目录结构

│  face-detect.exe│  haarcascade_frontalface_alt.xml│  shutter.mp3│  test.html│  test.php│  testphp.php│  webcam.js│  webcam.swf│  └─out

 test.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"   "http://www.w3.org/TR/html4/loose.dtd"><html lang="en"><head>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">    <title>JPEGCam Test Page</title>    <meta name="generator" content="TextMate http://macromates.com/">    <meta name="author" content="Joseph Huckaby">    <!-- Date: 2008-03-15 --></head><body>    <table><tr><td valign=top>    <h1>JPEGCam Test Page</h1>    <h3>Demonstrates a very simple, one-click capture &amp; upload implementation</h3>        <!-- First, include the JPEGCam JavaScript Library -->    <script type="text/javascript" src="webcam.js"></script>        <!-- Configure a few settings -->    <script language="JavaScript">        webcam.set_api_url( ‘test.php‘ );        webcam.set_quality( 90 ); // JPEG quality (1 - 100)        webcam.set_shutter_sound( true ); // play shutter click sound    </script>        <!-- Next, write the movie to the page at 320x240 -->    <script language="JavaScript">        document.write( webcam.get_html(320, 240) );    </script>        <!-- Some buttons for controlling things -->    <br/><form>        <input type=button value="Configure..." onClick="webcam.configure()">        &nbsp;&nbsp;        <input type=button value="Take Snapshot" onClick="webcam.snap()">    </form>    <img id="resultimg"  src="" />    <script language="JavaScript">        webcam.set_hook( ‘onComplete‘, ‘my_callback_function‘ );        function my_callback_function(response) {            //  alert("sucess " + response);            document.getElementById("resultimg").src=""+response;                webcam.reset();        }</script></body></html>

test.php

<?php/* JPEGCam Test Script *//* Receives JPEG webcam submission and saves to local file. *//* Make sure your directory has permission to write files as your web server user! */$filename = date(‘YmdHis‘) . ‘.jpg‘;$result = file_put_contents( $filename, file_get_contents(‘php://input‘) );$cmd  = ‘F://xampp//htdocs//face//face-detect//face-detect.exe --input="‘.$filename.‘" --outdir=out"‘;exec($cmd, $info);foreach ($info as $i => $line)	{			if (preg_match(‘/\d+,\s*([^\s]+)\s+\((\d+)x(\d+)\)/i‘, $line, $m))			{			//	print  ‘http://‘.$_SERVER[‘HTTP_HOST‘].dirname($_SERVER[‘REQUEST_URI‘])."/".$m[1];			//	echo   "<br>";			//	echo $m[2];			//	echo $m[3];			}	}$url = ‘http://‘ . $_SERVER[‘HTTP_HOST‘] . dirname($_SERVER[‘REQUEST_URI‘]) . ‘/‘ . $filename;print "$url\n";

 实验结果

out目录里就有检测的脸了

source code download

http://pan.baidu.com/share/link?shareid=4035488383&uk=792406754

修改人脸检测自带的php文件

<?php    $file = ‘uploads/‘.date(‘YmdHis‘).‘.jpg‘;;    file_put_contents("$file", file_get_contents("php://input"));    $cmd  = ‘F://xampp//htdocs//face//face-detect//face-detect.exe --input="‘.$file.‘" --outdir=uploads"‘;//    $cmd  = ‘F://xampp//htdocs//face//face-detect//face-detect.exe --input=uploads//1.jpg --outdir=uploads‘;    //    $last = exec($cmd, &$out);    $last = exec($cmd, $out);    if (strpos($last, ‘Error:‘) === false)    {        $res = array(‘success‘ => true);        foreach ($out as $i => $line)        {            if (preg_match(‘/\d+,\s*([^\s]+)\s+\((\d+)x(\d+)\)/i‘, $line, $m))                $res[‘images‘][] = array(‘src‘ => $m[1], ‘width‘ => $m[2], ‘height‘ => $m[3]);        }    }    else        $res = array(‘success‘ => false, ‘msg‘ => $last);    header(‘Content-Type: application/json‘);    echo json_encode($res);

效果


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