PHP Imagick fxImage () function

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• Imagick::fxImage Function()- it is a built-in function in PHP that evaluates an expression for each pixel in an image.
• The Imagick::fxImage() function allows you to manipulate images by processing a set of FX expressions for each pixel in an image.

Syntax:

Imagick::fxImage (string $expression [, int $channel = Imagick::CHANNEL_DEFAULT]) 

Options:

• $expression
  These are FX expressions for manipulating images.
• $channel
  Any channel constant can be selected based on the actual channel mode. If you need to add more channel constant, use bitwise operators to combine channel type constants.

Return value:
• Imagick function: : fxImagereturns TRUE onon success, or
  FALSEon failure.

Example 1:
To illustrate image manipulation by an FX expression using the Imagick::fxImage()function.
// Imagick-fxImage $imagick = new Imagick(); // new pseudo image $imagick -> newPseudoImage (200, 200, " gradient: white-black " ); // $fx value applied $fx = ’floor (s * 10 + 0.5) / 10’ ; $fxImage = $imagick -> fxImage ( $fx ); // Show image header ( "Content-Type: image / png" ); $fxImage -> setimageformat ( ’png’ ); echo $fxImage -> getImageBlob(); ?> Output: Example 2:
To illustrate image manipulation by an FX expression using the Imagick::fxImage()function.
// Imagick-fxImage $imagick = new Imagick(); // New pseudo-image $imagick -> newPseudoImage (200, 200, "plasma: fractal" ); // $fx value applied $fx = ’(u.g + vg) / 2’ ; $fxImage = $imagick -> fxImage ( $fx ); // Show image header ( " Content-Type: image / png " ); $fxImage -> setimageformat ( ’png’ ); echo $fxImage -> getImageBlob(); $fxImage -> WriteImage ( ’Imagick-fxImageex02.png’ ); ?> Output: Link : https://www.php.net/manual/en/imagick .fximage.php