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PHP | Imagick getImageWhitePoint() Function

  • Last Updated : 26 Aug, 2019
Geek Week

The Imagick::getImageWhitePoint() function is an inbuilt function in PHP which is used to get the chromaticity white point of an Imagick object.

Syntax:

bool Imagick::getImageWhitePoint( void)

Parameters: This function does not accept any parameter.

Return Value: This function returns the chromaticity white point as an associative array with the keys value x and y.

Below programs illustrate the Imagick::getImageWhitePoint() function in PHP:



Program 1:
Original Image:
https://media.geeksforgeeks.org/wp-content/uploads/geeks-21.png




<?php
  
// Craeate new imagic object
$imagick = new Imagick(
  
// Getting Length of image
// using getimagerelength function
$res = $imagick->getImageWhitePoint();
  
// Display result
print_r($res);
  
?>

Output:

Array ( [x] => 0.31270000338554 [y] => 0.3289999961853 ) 

Program 2:
Original Image:
https://media.geeksforgeeks.org/wp-content/uploads/Screenshot-from-2018-10-16-23-23-54.png




<?php 
  
$string = "Computer Science portal for Geeks!"
     
// Creating new image of above String 
// and add color and background 
$im = new Imagick(); 
$draw = new ImagickDraw(); 
    
// Fill the color in image 
$draw->setFillColor(new ImagickPixel('green')); 
    
// Set the text font size 
$draw->setFontSize(50); 
    
$metrix = $im->queryFontMetrics($draw, $string); 
$draw->annotation(0, 40, $string); 
$im->newImage($metrix['textWidth'], $metrix['textHeight'], 
              new ImagickPixel('white')); 
             
// Draw the image          
$im->drawImage($draw);
  
// getting Length of image
// using getimagerelength function
$res = $im->getImageWhitePoint();
  
// Display result
print_r($res);
  
?>

Output:

Array ( [x] => 0.31270000338554 [y] => 0.3289999961853 ) 

Reference: http://php.net/manual/en/imagick.getimagewhitepoint.php




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