[edit] Last updated: Fri, 17 May 2013

Imagick::setSize

(PECL imagick 2.0.0)

Imagick::setSize — Imagick オブジェクトのサイズを設定する

説明

bool Imagick::setSize ( int $columns , int $rows )

Imagick オブジェクトのサイズを設定します。 RGB や GRAY、CMYK といった生の画像フォーマットを読み込む前に設定します。

パラメータ

columns
rows

返り値

成功した場合に TRUE を返します。

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Mike Pratt ¶

7 months ago


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).

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