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(PECL imagick 2.0.0)
Imagick::trimImage — Remove edges from the image
Remove edges that are the background color from the image. Diese Funktion ist verfügbar, wenn Imagick gegen die ImageMagick-Version 6.2.9 oder höher kompiliert wurde.
By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. This parameter represents the variation on the quantum range.
Liefert TRUE bei Erfolg.
Wirft ImagickException bei Fehlern.
Beispiel #1 Using Imagick::trimImage():
Trim an image, then display to the browser.
<?php
/* Create the object and read the image in */
$im = new Imagick("image.jpg");
/* Trim the image. */
$im->trimImage(0);
/* Ouput the image */
header("Content-Type: image/" . $im->getImageFormat());
echo $im;
?>
After operations that change the crop of the image, like trimImage does, IM preserves the old canvas and positioning info. If you need to do additional operations on the image based on the new size, you'll need to reset this info with setImagePage. This is the equivalent of the +repage command line argument.
<?php
$im->trimImage(0);
$im->setImagePage(0, 0, 0, 0);
?>
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