PHP | Imagick mapImage() Function

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The Imagick::mapImage() function is an inbuilt function in PHP which is used to replace the colors of an image with the closest color from a reference image.

Syntax:

bool Imagick::mapImage( Imagick $map, float $dither )

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

$map: This parameter holds the Imagick object.
$dither: This parameter holds a boolean which decides whether to add noise or not.

Return Value: This function returns TRUE on success.

Errors/Exceptions: This function throws ImagickException on error.

Below programs illustrate the Imagick::mapImage() function in PHP:

Program 1:

<?php 
  
// Create a new imagick object 
$imagick1 = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/20190823154611/zambiatek24.png'); 
   
// Create another imagick object 
$imagick2 = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/20190901195451/mattefloodfillimage.png'); 
   
// Mapping the image with noise 
$imagick1->mapImage($imagick2, true); 
   
header("Content-Type: image/jpg");  
     
// Display the output image  
echo $imagick1->getImageBlob(); 
  
?> 

Output:

Program 2:

<?php 
  
// Create a new imagick object 
$imagick1 = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/20190823154611/zambiatek24.png'); 
   
// Create another imagick object 
$imagick2 = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/20190901195451/mattefloodfillimage.png'); 
   
// Mapping the image without noise 
$imagick1->mapImage($imagick2, false); 
   
header("Content-Type: image/jpg");  
     
// Display the output image  
echo $imagick1->getImageBlob(); 
  
?> 

Output:

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

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