The Imagick::setImageBackgroundColor() function is an inbuilt function in PHP which is used to set the image background color.
Syntax:
bool Imagick::setImageBackgroundColor( mixed $background )
Parameters: This function accepts single parameter $background which holds the background color.
Return Value: This function returns TRUE on success.
Exceptions: This function throws ImagickException on error.
Below programs illustrate the Imagick::setImageBackgroundColor() function in PHP:
Program 1:
<?php   // Create a new imagick object $imagick = new Imagick(   // Set background color $imagick->setImageBackgroundColor('yellow');   // Set the ImageAlphaChannel to 9 which corresponds // to imagick::ALPHACHANNEL_TRANSPARENT $imagick->setImageAlphaChannel(9);   // Display the image header("Content-Type: image/png"); echo $imagick->getImageBlob(); ?> |
Output:
Program 2:
<?php   // Create a new imagick object $imagick = new Imagick();   // Write the caption in a image $imagick->newPseudoImage(800, 270, "caption:GeekforGeeks");   // Set background color $imagick->setImageBackgroundColor('grey');   // Set the ImageAlphaChannel to 9 which corresponds // to imagick::ALPHACHANNEL_TRANSPARENT $imagick->setImageAlphaChannel(9);   // Display the image $imagick->setformat('png'); header("Content-Type: image/png");   echo $imagick->getImageBlob(); ?> |
Output:
Reference: https://www.php.net/manual/en/imagick.setimagebackgroundcolor.php
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