(PECL imagick 2.0.0)
Imagick::trimImage — Remove edges from the image
$fuzz
) : boolRemove edges that are the background color from the image. �˷�����Imagick����ImageMagick 6.2.9���ϰ汾����ʱ���á�
fuzzBy 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.
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Example #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;
?>