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PHP Imagick setImageCompression () Function

Syntax:
bool Imagick::setImageCompression (int $compression)
Parameters:This function takes one parameter, $compression,which contains an integer that matches one of the constants Imagick::COMPRESSION_ * . Alternatively, you can pass a constant directly as
$imagick-> setImageCompression (Imagick::COMPRESSION_DXT1);,Below is a list of compression constants:
  • imagick::COMPRESSION_UNDEFINED (0)
  • imagick::COMPRESSION_NO (1)
  • imagick::COMPRESSION_BZIP (2)
  • imagick::COMPRESSION_FAX (6)
  • imagick::COMPRESSION_GROUP4 (7)
  • imagick::COMPRESSION_JPEG (8)
  • imagick::COMPRESSION_JPEG2000 (9)
  • imagick::COMPRESSION_LOSSLESSJPEG (10)
  • imagick: : COMPRESSION_LZW (11)
  • imagick::COMPRESSION_RLE (12)
  • imagick::COMPRESSION_ZIP (13)
  • imagick::COMPRESSION_DXT1 (3)
  • imagick::COMPRESSION_DXT3 (4)
  • imagick::COMPRESSION_DXT5 (5)
Return value:this function returns TRUE on success.Exceptions:This function throws an ImagickException on error.The following programs illustrate the Imagick::setImageCompression() function in PHP:Prog frame 1:  
// Create a new Imagick object $imagick = new Imagick ( https://media.engineerforengineer.org /wp-content/uploads/engineerforengineer-13.png );  
// Set compression to COMPRESSION_RLE $imagick -> setImageCompression (imagick::COMPRESSION_RLE);  
// Get compression $compression = $imagick -> getImageCompression(); echo $compression ; ?>
Output:
12
Program 2:  
// Create a new Imagick object $imagick = new Imagick ( https://media.engineerforengineer.org/wp-content/uploads/engineerforengineer-13.png );  
// Set compression to COMPRESSION_JPEG $imagick -> setImageCompression (imagick::COMPRESSION_JPEG);  
// Set compression quality
// This is where this compression method is imagick::COMPRESSION_JPEG
// used in the program. $imagick -> setImageCompressionQuality (5);  
// Show output $imagick -> setformat ( ’jpg’ ); header ( "Content-Type: image / jpg" ); echo $imagick -> getImageBlob(); ?>
Output: Link : https://www.php.net/manual/en/imagick.setimagecompression.php

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