- The Imagick::fxImage() function is an inbuilt function in PHP which evaluate expression for each pixel in the image.
- The Imagick::fxImage() function allows you to perform image manipulation by processing set of FX expressions for each pixel with in the image.
Syntax:
Imagick::fxImage ( string $expression [, int $channel = Imagick::CHANNEL_DEFAULT ] )
Parameters:
- $expression It is FX expressions for image Manipulation.
- $channel Any channel constant can be fetched based on valid channel mode. If more channel constant need to add use bitwise operators to merge channeltype constants.
- Imagick::fxImage function will returns TRUE if success or returns FALSE on failure.
Example 1: To illustrate image manipulation by FX expression using Imagick::fxImage() function.Â
php
<?php// Imagick-fxImage$imagick = new \Imagick();    //new pseudo image    $imagick->newPseudoImage(200, 200, "gradient:white-black");Â
    //$fx value applied    $fx = 'floor(s*10+0.5)/10';    $fxImage = $imagick->fxImage($fx);//Display Image    header("Content-Type: image/png");    $fxImage->setimageformat('png');    echo $fxImage->getImageBlob();?> |
Output: 
Example 2: To illustrate image manipulation by FX expression using Imagick::fxImage() function.Â
php
<?php// Imagick-fxImage$imagick = new \Imagick();Â
// New pseudo image    $imagick->newPseudoImage(200, 200, "plasma:fractal");Â
    // $fx value applied    $fx = '(u.g+v.g)/2';    $fxImage = $imagick->fxImage($fx);Â
    // Display Image    header("Content-Type: image/png");    $fxImage->setimageformat('png');    echo $fxImage->getImageBlob();    $fxImage->WriteImage('Imagick-fxImageex02.png');?> |
Output: Reference: https://www.php.net/manual/en/imagick.fximage.php
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