(PECL imagick 2.0.0)
Imagick::resizeImage — Scales an image
$columns
, int $rows
, int $filter
, float $blur
[, bool $bestfit = false
] )Scales an image to the desired dimensions with a filter.
Note: 参数
bestfit的特性在 Imagick 3.0.0 中已改变。在此版本以前,当目标尺寸设为 400x400 时,原尺寸为 200x150 的图像将不会被改变。自 Imagick 3.0.0 起,源图像将会被放大到 400x300 因为这将更好的适合目标尺寸。当使用参数bestfit时,必须同时给出宽度和高度。
columnsWidth of the image
rowsHeight of the image
filterRefer to the list of filter constants.
blurThe blur factor where > 1 is blurry, < 1 is sharp.
bestfitOptional fit parameter.
成功时返回 TRUE。
| 版本 | 说明 |
|---|---|
| 2.1.0 | Added optional fit parameter. This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
Example #1 Imagick::resizeImage()
<?php
function resizeImage($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();
}
?>