Skip to content
Related Articles

Related Articles

PHP | Imagick thresholdImage() Function
  • Last Updated : 26 Aug, 2019

The Imagick::thresholdImage() function is an inbuilt function in PHP which is used to changes the value of individual pixels based on the threshold value.


bool Imagick::thresholdImage( $threshold, $channel )

Parameters: This function accepts two parameters as mentioned above and described below:

  • $threshold: This parameter set the threshold value.
  • $channel: This parameter set the channel of image. CHANNEL_DEFAULT is used as a default channel.

Return Value: This function returns True on success.

Below program illustrates the Imagick::thresholdImage() function in PHP:


// Create an imagick object
$imagick = new Imagick(
// Use thresholdimage function
$imagick->thresholdimage(0.5, 2);
header("Content-Type: image/jpg");
// Display the output image
echo $imagick->getImageBlob();


Related Articles:


My Personal Notes arrow_drop_up
Recommended Articles
Page :