<?php
include_once 'ahash-common.inc.php';
define("PHOTO_PATH", "images");
$up_form = <<< EOS
<h3>類似画像検索(Average Hash)</h3>
<div style="border:1px solid silver;padding:12px">
JPEGファイルを選択してください。<br>
<form enctype="multipart/form-data" method="POST">
<input name="upfile" type="file"><br>
<input type="submit" value="アップロード">
</form></div>
EOS;
$head = '<html><meta charset="utf-8"><body>';
$foot = '</body></html>';
if(empty($_FILES['upfile']['tmp_name'])){
echo $head.$up_form.$foot;
exit;
}
$upfile = dirname(__FILE__).'/upfile.jpg';
move_uploaded_file($_FILES['upfile']['tmp_name'], $upfile);
$target = makeAHash($upfile, false);
$files = enumJpeg(PHOTO_PATH);
$result = checkHash($target, $files);
$top6 = array_slice($result, 0, 6);
echo $head;
echo "<div style='text-align:center'><h2>アップした写真</h2>";
echo "<img src='upfile.jpg' width=300>";
echo "<h2>以下類似する順番に表示</h2>";
foreach($top6 as $f){
$path = $f['path'];
$value = $f['value'];
echo "<img src='path' width=300 alt='$value:$path'>";
}
echo "</div>".$foot;
// hashから類似度を算出
function checkHash($target, $files){
$list = [];
foreach ($files as $file){
$hash = makeAHash($file);
$match = 0;
for ($i = 0; $i < strlen($target); $i++){
if (substr($target,$i,1) == substr($hash,$i,1)) $match++;
}
$list[] = [
"path" => $file,
"value" => $match,
];
}
usort($list, function ($a, $b){
return $b['value'] - $a['value'];
});
return $list;
}
