PHP | Imagick paintTransparentImage() Function

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The Imagick::paintTransparentImage() function is an inbuilt function in PHP which is used to change any pixel that matches the color with the defined color.

Syntax:

bool Imagick::paintTransparentImage( $target, $alpha, $fuzz )

Parameters: This function accepts three parameters as mentioned above and described below:

$target: It contains the value of target color to change the specified opacity value within the given range.
$alpha: It contains the floating point value ranging from 0.0(fully transparent) to 1.0(fully opaque).
$fuzz: It defines how much the tolerance is accepted to consider the two colors as the same.

Return Value: This function returns True on success.

Errors/Exceptions: This function throws ImagickException on error.

Below program illustrates the Imagick::paintTransparentImage() function in PHP:

Program:

<?php  
  
// Create a new Imagick object 
$imagick = new \Imagick( 
'https://zambiatek.com/wp-content/uploads/2023/10/zambiatek-9-22.png');  
  
// Cloning the imagick object 
$paintit = clone $imagick;  
  
$quantum = $imagick->getQuantumDepth()['quantumDepthLong']; 
  
// Use Imagick::paintTransparentImage() function function 
// change the pixel color 
$paintit->paintTransparentImage("White", 0.2, 0.5 *$quantum); 
  
header("Content-Type: image/jpg");  
  
// Display the output image  
echo $paintit->getImageBlob();  
  
?> 

Output:

Reference: https://www.php.net/manual/en/imagick.painttransparentimage.php

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