-----Imagick 3.4.3 && ImageMagick 7.0.6
-----why cannot find filter method?????
if (!method_exists(Imagick, 'filter')) {
echo 'undefined filter()！';
} else {
echo 'defined filter()！';
}
(PECL imagick 3 >= 3.3.0)
Imagick::filter — Applies a custom convolution kernel to the image
This function has been DEPRECATED as of Imagick 3.4.4. Relying on this function is highly discouraged.
$ImagickKernel, int $channel = Imagick::CHANNEL_UNDEFINED): boolApplies a custom convolution kernel to the image.
ImagickKernelAn instance of ImagickKernel that represents either a single kernel or a linked series of kernels.
channel
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. Per default è Imagick::CHANNEL_DEFAULT. Fare riferimento a questa lista di costanti di canale
Restituisce true in caso di successo.
Example #1 Imagick::filter()
<?php
function filter($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$matrix = [
[-1, 0, -1],
[0, 5, 0],
[-1, 0, -1],
];
$kernel = \ImagickKernel::fromMatrix($matrix);
$strength = 0.5;
$kernel->scale($strength, \Imagick::NORMALIZE_KERNEL_VALUE);
$kernel->addUnityKernel(1 - $strength);
$imagick->filter($kernel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>-----Imagick 3.4.3 && ImageMagick 7.0.6
-----why cannot find filter method?????
if (!method_exists(Imagick, 'filter')) {
echo 'undefined filter()！';
} else {
echo 'defined filter()！';
}-----Imagick::filter cannot work!
-----suse linux server , imagick module version 3.4.3
-----run Example #1 Imagick::filter() , there is no result! where is problem?
thank you for your answer!
Alex