PHP | Gmagick resampleimage() Function

The Gmagick::resampleimage() function is an inbuilt function in PHP which is used to resample the image to the desired resolution.

Syntax:

Gmagick Gmagick::resampleimage( $xResolution, $yResolution, 
$filter, $blur )

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



  • $xResolution: This parameter is used to set the value for x-resolution for new image.
  • $yResolution: This parameter is used to set the value for y-resolution for new image.
  • $filter: This parameter is used to set the value for filter.
  • $blur: This parameter is used to set the value for blur. The value larger than 1 results in blurry whereas lesser than 1 is sharp.

Return Value: This function returns Gmagick object on success.

Errors/Exceptions: This function throws GmagickException on error.

Below programs illustrates the Gmagick::resampleimage() function in PHP:

Program 1:
Input Image:

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code

<?php 
    
// Create a Gmagick object 
$gmagick = new Gmagick(
'https://media.geeksforgeeks.org/wp-content/uploads/tech.png'); 
    
// Resample the image. 
$gmagick->resampleimage(120, 100, 5, 2); 
  
header('Content-type: image/png'); 
    
// Ouput the image 
echo $gmagick; 
?> 

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Output:




Program 2:













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                                    edit

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                                    link

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<?php  


     


// Create a GmagickDraw object  


$draw = new GmagickDraw();  


    


// Create GmagickPixel object  


$strokeColor = new GmagickPixel('Red');  


$fillColor = new GmagickPixel('Green');  


    


// Set the color, opacity of image  


$draw->setStrokeOpacity(1);  


$draw->setStrokeColor('Red');  


$draw->setFillColor('Green');  


    


// Set the width and height of image  


$draw->setStrokeWidth(7);  


$draw->setFontSize(72);  


     


// Function to draw circle   


$draw->circle(250, 250, 100, 150);  


   


$gmagick = new Gmagick();  


$gmagick->newImage(500, 500, 'White');  


$gmagick->setImageFormat("png");  


$gmagick->drawImage($draw);  


  


// Resample the image 


$gmagick->resampleimage(90, 90, 6, 10); 


   


// Display the output image  


header("Content-Type: image/png");  


echo $gmagick->getImageBlob();  


?>  



















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Output:




Reference: http://php.net/manual/en/gmagick.resampleimage.php





    

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