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- <?php
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function resize($src,$destSrc, $w,$h)
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{
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$temp=pathinfo($src);
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$name=$temp["basename"];
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$dir=$temp["dirname"];
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$savepath = empty($destSrc) ? "{$dir}/{$name}.thumb.jpg" : $destSrc;
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$image = new Imagick();
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$image->newImage($w, $h, new ImagickPixel('white'));
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$image->setImageFormat('png');
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$imagick = new Imagick();
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$imagick->readImage($src);
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$width = $imagick->getImageWidth();
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$height = $imagick->getImageHeight();
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if ($width > $w || $height > $h) {
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$imagick->resizeImage($w, $h, Imagick::FILTER_CATROM, 1, true);
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}
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$imagick->setImageFormat('JPEG');
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$imagick->setImageCompression(Imagick::COMPRESSION_JPEG);
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$a = $imagick->getImageCompressionQuality() * 0.75;
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if ($a == 0) {
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$a = 75;
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}
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$imagick->setImageCompressionQuality($a);
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$imagick->stripImage();
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$per1 = round($width/$height,2);//計(jì)算原圖長寬比
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$per2 = round($w/$h,2);//計(jì)算縮略圖長寬比
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if($per1 == $per2){
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$imagick->writeImage($savepath);
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}else{
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if($per1 > $per2){
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$x=0;
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$y=($h - $imagick->getImageHeight())/2;//垂直居中
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}elseif($per1 < $per2){
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$x=($w - $imagick->getImageWidth())/2;//水平居中
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$y=0;
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}else{
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$x = $y = 0;
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}
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$image->compositeImage($imagick, $imagick->getImageCompose(), $x, $y);
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$image->writeImage($savepath);
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}
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return $savepath;
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}
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?>
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發(fā)表于 2011-12-22 08:54