PHP | Imagick setImageInterpolateMethod() Function

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The Imagick::setImageInterpolateMethod() function is an inbuilt function in PHP which is used to set the interlace scheme of image.

Syntax:

bool Imagick::setImageInterpolateMethod( int $method )

Parameters: This function accepts a single parameter $method which corresponds to one of INTERPOLATE constants. We can also pass the constant directly like
setImageInterpolateMethod(imagick::INTERPOLATE_BICUBIC);.

List of INTERPOLATE constants are given below:

imagick::INTERPOLATE_UNDEFINED (0)
imagick::INTERPOLATE_AVERAGE (1)
imagick::INTERPOLATE_BICUBIC (2)
imagick::INTERPOLATE_BILINEAR (3)
imagick::INTERPOLATE_FILTER (4)
imagick::INTERPOLATE_INTEGER (5)
imagick::INTERPOLATE_MESH (6)
imagick::INTERPOLATE_NEARESTNEIGHBOR (7)
imagick::INTERPOLATE_SPLINE (8)

Return Value: This function returns TRUE on success.

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

Program 1:

PHP

<?php 
   
// Create a new imagick object 
$imagick = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/zambiatek-13.png'); 
   
// Set the Interpolate Method 
$imagick->setImageInterpolateMethod(imagick::INTERPOLATE_BILINEAR); 
   
// Get the Interpolate Method 
$interpolateScheme = $imagick->getImageInterpolateMethod(); 
echo $interpolateScheme; 
?>

Output:

3 // Which corresponds to imagick::INTERPOLATE_BILINEAR.

Program 2:

PHP

<?php 
   
// Create a new imagick object 
$imagick = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/zambiatek-13.png'); 
   
// Set the Interpolate Method 
$imagick->setImageInterpolateMethod(imagick::INTERPOLATE_NEARESTNEIGHBOR); 
   
// Get the Interpolate Method 
$interpolateScheme = $imagick->getImageInterpolateMethod(); 
echo $interpolateScheme; 
?>

Output:

7 // Which corresponds to imagick::INTERPOLATE_NEARESTNEIGHBOR.

Reference: https://www.php.net/manual/en/imagick.setimageinterpolatemethod.php

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