Imagick::transverseImage
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);
?>
Imagick::trimImage
(PECL imagick 2.0.0)
Imagick::trimImage — Remove edges from the image
Description
bool Imagick::trimImage
( float $fuzz
)
Remove edges that are the background color from the image. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.
Parameters
- fuzz
-
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.
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
Examples
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;
?>
See Also
- Imagick::getQuantumDepth() - Gets the quantum depth
- Imagick::getQuantumRange() - Returns the Imagick quantum range
add a note
User Contributed NotesImagick::trimImage
dhp
23-Apr-2009 11:31
23-Apr-2009 11:31
admin at imagehost-4u dot com
15-Jul-2008 05:45
15-Jul-2008 05:45
Adding to the previous comment, it also requires Imagick PECL >= 2.2 as I observed.