(PECL imagick 2, PECL imagick 3)
Imagick::resizeImage — Scales an image
$columns,$rows,$filter,$blur,$bestfit = false,$legacy = falseScales an image to the desired dimensions with a filter.
注意: 參數
bestfit的特性在 Imagick 3.0.0 中已改變。在此版本以前，當目標尺寸設為 400x400 時(shí)，原尺寸為 200x150 的圖像將不會(huì )被改變。自 Imagick 3.0.0 起，源圖像將會(huì )被放大到 400x300 因為這將更好的適合目標尺寸。當使用參數bestfit時(shí)，必須同時(shí)給出寬度和高度。
columnsWidth of the image
rowsHeight of the image
filterRefer to the list of filter constants.
blurThe blur factor where > 1 is blurry, < 1 is sharp.
bestfitOptional fit parameter.
成功時(shí)返回 true。
| 版本 | 說(shuō)明 |
|---|---|
| PECL imagick 2.1.0 | Added optional fit parameter. This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
示例 #1 Imagick::resizeImage()
<?php
function resizeImage($imagePath, $width, $height, $filterType, $blur, $bestFit, $cropZoom) {
//The blur factor where > 1 is blurry, < 1 is sharp.
$imagick = new \Imagick(realpath($imagePath));
$imagick->resizeImage($width, $height, $filterType, $blur, $bestFit);
$cropWidth = $imagick->getImageWidth();
$cropHeight = $imagick->getImageHeight();
if ($cropZoom) {
$newWidth = $cropWidth / 2;
$newHeight = $cropHeight / 2;
$imagick->cropimage(
$newWidth,
$newHeight,
($cropWidth - $newWidth) / 2,
($cropHeight - $newHeight) / 2
);
$imagick->scaleimage(
$imagick->getImageWidth() * 4,
$imagick->getImageHeight() * 4
);
}
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>