Imagick::optimizeImageLayers

(PECL imagick 2, PECL imagick 3)

Imagick::optimizeImageLayers — Removes repeated portions of images to optimize

Descrierea

public Imagick::optimizeImageLayers ( ) : bool

Compares each image the GIF disposed forms of the previous image in the sequence. From this it attempts to select the smallest cropped image to replace each frame, while preserving the results of the animation. Această metodă este disponibilă dacă Imagick a fost compilat cu ImageMagick de versiunea 6.2.9 sau ulterior.

Valorile întoarse

Întoarce true în caz de succes.

Erori/Excepții

Emite ImagickException în caz de eroare.

Exemple

Example #1 Using Imagick::optimizeImageLayers()

Reading, optimizing and writing a GIF image


<?php
/* create new imagick object */
$im = new Imagick("test.gif");

/* optimize the image layers */
$im->optimizeImageLayers();

/* write the image back */
$im->writeImages("test_optimized.gif", true);
?>

A se vedea și

Imagick::compareImageLayers() - Returns the maximum bounding region between images
Imagick::writeImages() - Writes an image or image sequence
Imagick::writeImage() - Writes an image to the specified filename

add a note

User Contributed Notes 1 note

down

-1

f21 dot groups at gmail dot com ¶

11 years ago


In imagick 3.x (have not checked 2.x), this returns an imagemagick object and not a boolean.

<?php

$image = new Imagick('myanimation.gif');

$image = $image->optimizeImageLayers(); //Does not return a boolean!

$image->writeImage('optimized.gif');

add a note