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Imagick::adaptiveResizeImage

(PECL imagick 2, PECL imagick 3)

Imagick::adaptiveResizeImageAdaptively resize image with data dependent triangulation

Descrizione

public Imagick::adaptiveResizeImage(
    int $columns,
    int $rows,
    bool $bestfit = false,
    bool $legacy = false
): bool

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

columns

The number of columns in the scaled image.

rows

The number of rows in the scaled image.

bestfit

Whether to fit the image inside a bounding box.

Valori restituiti

Restituisce true in caso di successo.

Errori/Eccezioni

Lancia una ImagickException in caso di errore.

Log delle modifiche

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

Esempi

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.

<?php
header
('Content-type: image/jpeg');

$image = new Imagick('image.jpg');
$image->adaptiveResizeImage(1024,768);

echo
$image;
?>

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