PHP | Imagick remapImage() Function
Last Updated :
04 Dec, 2019
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The Imagick::remapImage() function is an inbuilt function in PHP which is used to replace colors in an image with those defined by replacement. The colors are replaced with the closest possible color.
Syntax:
php
Output:
Program 2:
php
Output:
Reference: https://www.php.net/manual/en/imagick.remapimage.php
bool Imagick::remapImage( Imagick $replacement, int $dither )Parameters:This function accepts two parameters as mentioned above and described below:
- $replacement: It specifies an Imagick object containing the replacement colors.
- $dither: It specifies an integer value corresponding to one of DITHERMETHOD constants. You can also pass constant directly like remapImage($replacement, imagick::DITHERMETHOD_RIEMERSMA);.
- imagick::DITHERMETHOD_UNDEFINED (0)
- imagick::DITHERMETHOD_NO (1)
- imagick::DITHERMETHOD_RIEMERSMA (2)
- imagick::DITHERMETHOD_FLOYDSTEINBERG (3)
<?php
// Create a new Imagick object
$imagick = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png');
// Create another Imagick object
$replacement = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/20191130231936/areplace.png');
// Remap the image
$imagick->remapImage($replacement, imagick::DITHERMETHOD_RIEMERSMA);
// Display the image
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
<?php
// Create a new Imagick object
$imagick = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/20190918234528/colorize1.png');
// Create another Imagick object
$replacement = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/20191130231936/areplace.png');
// Remap the image
$imagick->remapImage($replacement, imagick::DITHERMETHOD_FLOYDSTEINBERG);
// Display the image
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
