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ImagickPixelIterator::clear

(PECL imagick 2.0.0)

ImagickPixelIterator::clearClear resources associated with a PixelIterator

说明

bool ImagickPixelIterator::clear ( void )
Warning

本函数还未编写文档,仅有参数列表。

Clear resources associated with a PixelIterator.

返回值

成功时返回 TRUE

范例

Example #1 ImagickPixelIterator::clear()

<?php
function  clear ( $imagePath ) {
    
$imagick  = new \ Imagick ( realpath ( $imagePath ));

    
$imageIterator  $imagick -> getPixelRegionIterator ( 100 100 250 200 );

    

    
foreach ( $imageIterator  as  $pixels ) { 
        

        
        
foreach ( $pixels  as  $column  =>  $pixel ) { 
            if (
$column  2 ) {
                

                
$pixel -> setColor ( "rgba(0, 0, 0, 0)" ); 
            }
        }
        

        
$imageIterator -> syncIterator ();
    }

    
$imageIterator -> clear ();

    
header ( "Content-Type: image/jpg" );
    echo 
$imagick ;
}

?>
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