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PHP Imagick setSamplingFactors () Function

Syntax:
bool Imagick::setSamplingFactors (array $factors)
Parameters:This function takes one parameter, $factor, which contains an associative array containing the sampling factors.Returned value:this function returns TRUE on success.Exceptions:this function throws an ImagickException on error.The programs below illustrate the Imagick::setSamplingFactors function()in PHP:Program 1:  
// Create a new imagick object $imagick = new Imagick ( https://media.engineerforengineer.org/wp-content/uploads/engineerforengineer-13.png );  
// Set the sampling factors $imagick -> setSamplingFactors ( array ( ’6’ , ’ 7’ , ’8’ ));  
// Get the sampling factors $samplingFactors = $imagick -> getSamplingFactors(); print ( "
 " . print_r (  $samplingFactors , true).  "
" ); ?>
Output:
Array ([0] = > 6 [1] = > 7 [2] = > 8)
Program 2:  
// Create a new imagick object $imagick = new Imagick ( https://media.engineerforengineer.org/wp-content/uploads/engineerforengineer-13.png );  
// Set the format to jpg $imagick -> setImageFormat ( ’jpg’ );  
// Set the sampling factors $imagick -> setSamplingFactors ( array ( ’1x1’ , ’ 2x2’ ));  
// Save image $compressed = $imagick -> getImageBlob();  
// Create a new imagick object $reopen = new Imagick(); $reopen -> readImageBlob ( $compressed );  
// Resize to the same size $reopen -> resizeImage (667, 184, 0, 1);  
// Show output header ( "Content-Type: image / jpg" ); echo $reopen -> getImageBlob(); ?>
Output: Link : https://www.php.net/manual/en/imagick.setsamplingfactors.php

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