Imagick::resizeImage
Imagick::resizeImage
(PECL imagick 2.0.0)
Imagick::resizeImage — Scales an image
Description
bool Imagick::resizeImage ( int $columns , int $rows , int $filter , float $blur [, bool $bestfit = false ] )
Scales an image to the desired dimensions with a filter.
Note
: The behavior of the parameterbestfit
changed in Imagick 3.0.0. Before this version given dimensions 400x400 an image of dimensions 200x150 would be left untouched. In Imagick 3.0.0 and later the image would be scaled up to size 400x300 as this is the "best fit" for the given dimensions. Ifbestfit
parameter is used both width and height must be given.
Parameters
columns
Width of the image
rows
Height of the image
filter
Refer to the list of filter constants.
blur
The blur factor where > 1 is blurry, < 1 is sharp.
bestfit
Optional fit parameter.
Return Values
Returns TRUE
on success.
Changelog
Version | Description |
---|---|
2.1.0 | Added optional fit parameter. This method now supports proportional scaling. Pass zero as either parameter for proportional scaling. |
Examples
Example #1 Imagick::resizeImage()
<?php
function resizeImage($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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Imagick::rollImage →
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