-----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()！';
}
(No version information available, might only be in Git)
Imagick::filter — Description
$ImagickKernel
[, int $channel = Imagick::CHANNEL_UNDEFINED
] ) : boolApplies a custom convolution kernel to the image.
ImagickKernelAn instance of ImagickKernel that represents either a single kernel or a linked series of kernels.
channel
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. 缺省为Imagick::CHANNEL_DEFAULT.
参考此 通道常数列表
成功时返回 TRUE。
Example #1 Imagick::filter()
<?php
function filter($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