PHP ImagickKernel separate()用法及代碼示例

ImagickKernel::separate()函數是PHP中的內置函數，用於分隔一組鏈接的內核並返回ImagickKernels數組。此函數用於計算對象中的內核或查看對象的內核。

用法:

array ImagickKernel::separate( void )

參數：此函數不接受任何參數。

返回值：此函數返回包含ImagickKernels的數組值。

以下示例程序旨在說明PHP中的ImagickKernel::separate()函數：

程序1:該程序計算ImagickKernel中的所有內核。

<?php 
  
// Create a new imagick object 
$imagick = new Imagick( 
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png'); 
  
$matrix1 = [ 
    [-1, -1, -1], 
    [4, 4, 4], 
    [1, 1, 1], 
]; 
  
$matrix2 = [ 
    [-1, 0, 0], 
    [0, 0, 1], 
    [-1, 0, 1], 
]; 
  
$matrix3 = [ 
    [-1, 1, 0], 
    [0, 0, 1], 
    [-1, 0, 1], 
]; 
  
$matrix4 = [ 
    [0, 1, 0], 
    [0, 0, 1], 
    [-1, 0, 1], 
]; 
  
// Create ImagickKernel objects from matrices 
$kernel1 = ImagickKernel::fromMatrix($matrix1); 
$kernel2 = ImagickKernel::fromMatrix($matrix2); 
$kernel3 = ImagickKernel::fromMatrix($matrix3); 
$kernel4 = ImagickKernel::fromMatrix($matrix4); 
  
// Add the kernels 
$kernel1->addKernel($kernel2); 
$kernel1->addKernel($kernel3); 
$kernel1->addKernel($kernel4); 
  
$kernelList = $kernel1->separate(); 
  
echo 'Total number of attached kernels are:'; 
echo count($kernelList); 
?>

輸出：

Total number of attached kernels are:4

程序2(將所有ImagickKernel獲取到一個對象中)：

<?php 
  
// Create a new imagick object 
$imagick = new Imagick( 
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png'); 
  
$matrix1 = [ 
    [-1, -1, -1], 
    [4, 4, 4], 
    [1, 1, 1], 
]; 
  
$matrix2 = [ 
    [-1, 0, 0], 
    [0, 0, 1], 
    [-1, 0, 1], 
]; 
  
// Create ImagickKernel objects from matrices 
$kernel1 = ImagickKernel::fromMatrix($matrix1); 
$kernel2 = ImagickKernel::fromMatrix($matrix2); 
  
// Add the kernel 
$kernel1->addKernel($kernel2); 
  
$kernelList = $kernel1->separate(); 
  
echo 'All the kernels are:'; 
print("<pre>".print_r($kernelList, true)."</pre>"); 
?>

輸出：

All the kernels are:
Array
(
    [0] => ImagickKernel Object
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [0] => -1
                            [1] => -1
                            [2] => -1
                        )

                    [1] => Array
                        (
                            [0] => 4
                            [1] => 4
                            [2] => 4
                        )

                    [2] => Array
                        (
                            [0] => 1
                            [1] => 1
                            [2] => 1
                        )

                )

        )

    [1] => ImagickKernel Object
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [0] => -1
                            [1] => 0
                            [2] => 0
                        )

                    [1] => Array
                        (
                            [0] => 0
                            [1] => 0
                            [2] => 1
                        )

                    [2] => Array
                        (
                            [0] => -1
                            [1] => 0
                            [2] => 1
                        )

                )

        )

)

參考： https://www.php.net/manual/en/imagickkernel.separate.php