基于opencv的人脸检测的web应用

时间：2023-03-09 15:30:39
基于opencv的人脸检测的web应用

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

基于opencv的人脸检测的web应用

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>

基于opencv的人脸检测的web应用

基于opencv的人脸检测的web应用

在线人脸检测

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

基于opencv的人脸检测的web应用

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

基于opencv的人脸检测的web应用

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