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(PECL imagick 2.0.0)

Imagick::adaptiveResizeImageAdaptively resize image with data dependent triangulation


bool Imagick::adaptiveResizeImage ( int $columns , int $rows [, bool $bestfit = false ] )

Adaptively resize image with data-dependent triangulation. Avoids blurring across sharp color changes. Most useful when used to shrink images slightly to a slightly smaller "web size"; may not look good when a full-sized image is adaptively resized to a thumbnail. Questo metodo è disponibile se Imagick è stato compilato con ImageMagick versione 6.2.9 o successive.

Nota: The behavior of the parameter bestfit 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. If bestfit parameter is used both width and height must be given.

Elenco dei parametri


The number of columns in the scaled image.


The number of rows in the scaled image.


Whether to fit the image inside a bounding box.

Valori restituiti

Restituisce TRUE in caso di successo.


Lancia una ImagickException in caso di errore.

Log delle modifiche

Versione Descrizione
2.1.0 Added optional fit parameter.
2.1.0 This method now supports proportional scaling. Pass zero as either parameter for proportional scaling.


Example #1 Using Imagick::adaptiveResizeImage()

Resize an image to a standard size for the web. This method works best when resizing to a size only slightly smaller than the previous image size.

('Content-type: image/jpeg');

$image = new Imagick('image.jpg');


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