Imagick::setSamplingFactors
Using setSize before reading an image file tells ImageMagick to resize the image immediately on load - this can give a substantial increase in performance time and save memory and disk resources for large images:
<?php
$image = new Imagick();
$image->setSize(800,600);
$image->readImage($file);
?>
This might also save you having to call thumbnailImage to resize the image.
On my server, this only made a difference with jpgs - pngs and gifs were loaded at full size which took much longer (30s or more compared to 6s for a similar sized jpg).
Imagick::setSize
(PECL imagick 2.0.0)
Imagick::setSize — Sets the size of the Imagick object
Description
bool Imagick::setSize
( int
$columns
, int $rows
)Sets the size of the Imagick object. Set it before you read a raw image format such as RGB, GRAY, or CMYK.
Parameters
-
columns -
-
rows -
Return Values
Returns TRUE on success.
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User Contributed Notes
Imagick::setSize - [1 notes]
Mike Pratt ¶
7 months ago