PHP | Imagick paintTransparentImage() Function

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://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.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