PHP | Imagick mapImage() Function

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.geeksforgeeks.org/wp-content/uploads/20190823154611/geeksforgeeks24.png');

// Create another imagick object
$imagick2 = new Imagick(
'https://media.geeksforgeeks.org/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.geeksforgeeks.org/wp-content/uploads/20190823154611/geeksforgeeks24.png');

// Create another imagick object
$imagick2 = new Imagick(
'https://media.geeksforgeeks.org/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