Imagick::resizeImage
(PECL imagick 2, PECL imagick 3)
Imagick::resizeImage — Scales an image
Description
public Imagick::resizeImage ( int $columns , int $rows , int $filter , float $blur [, bool $bestfit = false [, bool $legacy = false ]] ) : bool
Scales an image to the desired dimensions with a filter.
Note: The behavior of the parameter
bestfitchanged in Imagick 3.0.0. Before this version given dimensions 400x400 an image of dimensions 200x150 would be left untouched. In Imagick 3.0.0 and later the image would be scaled up to size 400x300 as this is the "best fit" for the given dimensions. Ifbestfitparameter is used both width and height must be given.
Parameters
-
columns -
Width of the image
-
rows -
Height of the image
-
filter -
Refer to the list of filter constants.
-
blur -
The blur factor where > 1 is blurry, < 1 is sharp.
-
bestfit -
Optional fit parameter.
Return Values
Returns true on success.
Changelog
| Version | Description |
|---|---|
| PECL imagick 2.1.0 | Added optional fit parameter. This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
Examples
Example #1 Imagick::resizeImage()
<?php
function resizeImage($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();
}
?>
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https://www.php.net/manual/en/imagick.resizeimage.php