Imagick::setSize

(PECL imagick 2, PECL imagick 3)

Imagick::setSize — Configure la taille de l'objet Imagick

Description

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

Configure la taille de l'objet Imagick. Configurez cet attribut avant d'ouvrir une image brute, aux formats RGB, GRAY ou CMYK.

Liste de paramètres

columns
rows

Valeurs de retour

Retourne true en cas de succès.

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User Contributed Notes 2 notes

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Mike Pratt ¶

12 years 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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Ade ¶

7 years ago


This function is not working for me at all.
I am trying to generate Images from a PDF and this function does literally NOTHING, even it returns 'true'.....

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