The Imagick::separateImageChannel() function is an inbuilt function in PHP which is used to separate a channel from the image and returns a grayscale image. A channel is a particular color component of each pixel in the image.
Syntax:
bool Imagick::separateImageChannel( int $channel )
Parameters:This function accepts a single parameter $channel which holds the integer value corresponding to one of the CHANNEL constants.
Return Value: This function returns TRUE on success.
Exceptions: This function throws ImagickException on error.
Below programs illustrate the Imagick::separateImageChannel() function in PHP:
Program 1:
<?php   // Create a new imagick object $imagick = new Imagick(   // Separate the image channel $imagick->separateImageChannel(1);   // Display the image header("Content-Type: image/png"); echo $imagick->getImageBlob(); ?> |
Output:
Program 2:
<?php   // Create a new imagick object $imagick = new Imagick(   // Apply selectiveBlurImage() function $imagick->separateImageChannel(imagick::CHANNEL_GREEN);   // Display the image header("Content-Type: image/png"); echo $imagick->getImageBlob(); ?> |
Output:
Reference: https://www.php.net/manual/en/imagick.separateimagechannel.php
Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
