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:
php
<?php // Create a Gmagick object $gmagick = new Gmagick( // Resample the image. $gmagick ->resampleimage(120, 100, 5, 2); header( 'Content-type: image/png' ); // Output the image echo $gmagick ; ?> |
Output:
Program 2:
php
<?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(); ?> |
Output:
Reference: http://php.net/manual/en/gmagick.resampleimage.php
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