The Imagick::opaquePaintImage() function is an inbuilt function in PHP which is used to replace the target color with the specified fill color value of any pixel that matches the target color.
Syntax:
bool Imagick::opaquePaintImage( $target, $fill, $fuzz,
$invert, $channel = Imagick::CHANNEL_DEFAULT ] )
Parameters: This function accepts five parameters as mentioned above and described below:
- $target: This parameter holds the ImagickPixel object or target color which need to be changed.
- $fill: This parameter holds the color for replacement.
- $fuzz: This parameter holds the amount of fuzz that will be in float type.
- $invert: Switch between 0 and 1 where 0 is normal and 1 is inverse.
- $channel: This parameter holds the Imagick channel constants that provide any channel constant which is valid for channel mode. More than one channel can be combined using bitwise operators.
Return Value: This function returns TRUE on success or FALSE on failure.
Below programs illustrate the Imagick::opaquePaintImage() function in PHP:
Program 1:
<?php // Image Path $imagePath = // Target color $target = 'rgb(255, 255, 255)'; // Replacing target color with another color $fill = 'rgb(255, 234, 128)'; $fuzz = '0.1'; // Initialize invert variable $invert = '0'; $imagick = new \Imagick($imagePath); // Set the image format $imagick->setimageformat('png'); $imagick->opaquePaintImage( $target, $fill, $fuzz * \Imagick::getQuantum(), $invert); // Use despeckleimage() function to reduce // the speckle noise in an image $imagick->despeckleimage(); header("Content-Type: image/png"); // Display the output image echo $imagick->getImageBlob(); ?> |
Output:
Program 2:
<?php // Image Path $imagePath = // Target color $target = 'rgb(255, 255, 255)'; // Replacing target color with another color $fill = 'rgb(21, 200, 236)'; $fuzz = '0.1'; // Initialize invert variable $invert = '0'; $imagick = new \Imagick($imagePath); // Set the image format $imagick->setimageformat('png'); $imagick->opaquePaintImage( $target, $fill, $fuzz * \Imagick::getQuantum(), $invert); header("Content-Type: image/png"); // Display the output image echo $imagick->getImageBlob(); ?> |
Output:
Reference: https://www.php.net/manual/en/imagick.opaquepaintimage.php
