The Imagick::haldClutImage() function is an inbuilt function in PHP which is used to replace colors in the image using a Hald lookup table. Hald images can be created using HALD color coder.
Syntax:
bool Imagick::haldClutImage( $clut, $channel )
Parameters: This function accepts two parameters as mentioned above and described below:
- $clut: This parameter is used to hold the value of Imagick object containing the Hald lookup image.
- $channel: This parameter provides the channel constant that is valid for channel mode. More than one channel can be combined using bitwise operator. The defaults channel in Imagick function is Imagick::CHANNEL_DEFAULT.
Return Value: This function returns True on success.
Errors/Exceptions: This function throws ImagickException on error.
Original Image:
The below program illustrates the Imagick::haldClutImage() function in PHP.
Program 1:
php
<?php // require_once('path/vendor/autoload.php'); // Create new Imagick Objects$imagick = new \Imagick(realpath('img/neveropen.png'));$imagickPalette = new \Imagick(realpath("img/neveropen.png")); // Use sepiatoneImage and haldClutImage function$imagickPalette->sepiatoneImage(50);$imagick->haldClutImage($imagickPalette); // Image Headerheader("Content-Type: image/jpg");// Display the output imageecho $imagick->getImageBlob();?> |
Output:
Program 2:
php
<?php // require_once('path/vendor/autoload.php');// Create new Imagick Object$imagick = new Imagick('img/neveropen.png');$imagickPalette = new Imagick("img/neveropen.png");// Use haldClutImage function$imagickPalette->sepiatoneImage(150);$imagick->haldClutImage($imagickPalette);// Write output Image$imagick->writeImage('raiseImae1.png');// Destroy Imagick object$imagick->destroy();?> |
Output:
Reference: http://php.net/manual/en/imagick.haldclutimage.php
