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PHP | Gmagick resizeimage() Function
  • Last Updated : 29 Aug, 2019

The Gmagick::resizeimage() function is an inbuilt function in PHP which is used to scale an image in given dimensions with a filter.


Gmagick Gmagick::resizeimage( $width, $height, $filter, $blur)

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

  • $width: This parameter is used to set the width of image.
  • $height: This parameter is used to set the height of 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::resizeimage() function in PHP:

Program 1:
Input Image:

// Create a Gmagick object 
$gmagick = new Gmagick(
// Resize the image. 
$gmagick->resizeimage(1024, 768, 10, 5, true); 
header('Content-type: image/png'); 
// Ouput the image 
echo $gmagick


Program 2:

// Create a GmagickDraw object 
$draw = new GmagickDraw(); 
// Create GmagickPixel object 
$strokeColor = new GmagickPixel('Red'); 
$fillColor = new GmagickPixel('Green'); 
// Set the color, opacity of image 
// Set the width and height of image 
// Function to draw circle  
$draw->circle(250, 250, 100, 150); 
$gmagick = new Gmagick(); 
$gmagick->newImage(500, 500, 'White'); 
// Resize the image
$gmagick->resizeimage(890, 790, 6, 10);
// Display the output image 
header("Content-Type: image/png"); 
echo $gmagick->getImageBlob(); 



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