Imagick::convolveImage
There is an easiest way to crop an image :
$picture = new Imagick('animated_gif.gif');
foreach($picture as $frame){
$frame->cropImage($width, $height, $x, $y);
}
Imagick::cropImage
(No version information available, might be only in CVS)
Imagick::cropImage — Extracts a region of the image
Description
bool Imagick::cropImage
( int $width
, int $height
, int $x
, int $y
)
Warning
This function is currently not documented; only its argument list is available.
Extracts a region of the image.
Parameters
- width
-
The width of the crop
- height
-
The height of the crop
- x
-
The X coordinate of the cropped region's top left corner
- y
-
The Y coordinate of the cropped region's top left corner
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
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User Contributed NotesImagick::cropImage
vincent dot hoen at gmail dot com
02-Aug-2007 03:35
02-Aug-2007 03:35
vincent dot hoen at gmail dot com
01-Aug-2007 05:39
01-Aug-2007 05:39
If you're working with animated gif you might want to process this way (Probably not the best, but at least it works) :
$picture = new Imagick('animated_gif.gif');
//Crop first image
$picture->cropImage($width, $height, $x, $y);
//Crop every other image
while($picture->hasNextImage()){
$this->nextImage();
$this->cropImage($width, $height, $x, $y);
}
//display image
$picture->getImageBlob();