<?php?
/** 圖片局部打馬賽克
* @param? String? $source 原圖
* @param? Stirng? $dest?? 生成的圖片
* @param? int???? $x1???? 起點橫坐標
* @param? int???? $y1???? 起點縱坐標
* @param? int???? $x2???? 終點橫坐標
* @param? int???? $y2???? 終點縱坐標
* @param? int???? $deep?? 深度,數字越大越模糊
* @return boolean
*/?
function imageMosaics($source, $dest, $x1, $y1, $x2, $y2, $deep){?
?
??? // 判斷原圖是否存在?
??? if(!file_exists($source)){?
??????? return false;?
??? }?
?
??? // 獲取原圖信息?
??? list($owidth, $oheight, $otype) = getimagesize($source);?
?
??? // 判斷區域是否超出圖片?
??? if($x1>$owidth || $x1<0 || $x2>$owidth || $x2<0 || $y1>$oheight || $y1<0 || $y2>$oheight || $y2<0){?
??????? return false;?
??? }?
?
??? switch($otype){?
??????? case 1: $source_img = imagecreatefromgif($source); break;?
??????? case 2: $source_img = imagecreatefromjpeg($source); break;?
??????? case 3: $source_img = imagecreatefrompng($source); break;?
??????? default:?
??????????? return false;?
??? }?
?
??? // 打馬賽克?
??? for($x=$x1; $x<$x2; $x=$x+$deep){?
??????? for($y=$y1; $y<$y2; $y=$y+$deep){?
??????????? $color = imagecolorat($source_img, $x+round($deep/2), $y+round($deep/2));?
??????????? imagefilledrectangle($source_img, $x, $y, $x+$deep, $y+$deep, $color);?
??????? }?
??? }?
?
??? // 生成圖片?
??? switch($otype){?
??????? case 1: imagegif($source_img, $dest); break;?
??????? case 2: imagejpeg($source_img, $dest); break;?
??????? case 3: imagepng($source_img, $dest); break;?
??? }?
?
??? return is_file($dest)? true : false;?
?
}?
?
$source = 'source.jpg';?
$dest = 'dest.jpg';?
?
$flag = imageMosaics($source, $dest, 176, 98, 273, 197, 4);?
echo '<img src="'.$source.'">';?
echo '<img src="'.$dest.'">';?
?>