Attach another kernel to a kernel list

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- ImagickKernel
- Attach another kernel to a kernel list

# ImagickKernel::addKernel

(PECL imagick >= 3.3.0)

ImagickKernel::addKernel — Attach another kernel to a kernel list

### Description

public ImagickKernel::addKernel(ImagickKernel `$ImagickKernel`): void

Attach another kernel to this kernel to allow them to both be applied in a single morphology or filter function. Returns the new combined kernel.

### Parameters

`ImagickKernel`

### Return Values

### Examples

Example #1 ImagickKernel::addKernel()

    <?phpfunction addKernel($imagePath) {    $matrix1 = [        [-1, -1, -1],        [ 0,  0,  0],        [ 1,  1,  1],    ];    $matrix2 = [        [-1,  0,  1],        [-1,  0,  1],        [-1,  0,  1],    ];    $kernel1 = ImagickKernel::fromMatrix($matrix1);    $kernel2 = ImagickKernel::fromMatrix($matrix2);    $kernel1->addKernel($kernel2);    $imagick = new \Imagick(realpath($imagePath));    $imagick->filter($kernel1);    header("Content-Type: image/jpg");    echo $imagick->getImageBlob();}?>