Question

I am trying to add round corners to a jpeg file, but the problem is that after adding round corners, I am getting a black background color. Somehow I am not able to change it to any other color (white, transparent, red). It just simply shows black background where the image has rounded corners.

The code that I am using is:

<?php

    $image = new Imagick('example.jpg');
    $image->setBackgroundColor("red");
    $image->setImageFormat("jpg");
    $image->roundCorners(575,575);
    $image->writeImage("rounded.jpg");
    header('Content-type: image/jpeg');
    echo $image;

?>

I cannot use png as the jpeg files are huge, about 5 MB, so if I used png, the file size would go up to 26 MB, even though the png adds transparent round corners.

Also the IMagick version that i am using is:

ImageMagick 6.6.2-10 2010-06-29 Q16 http://www.imagemagick.org 

Also the output(image generated) will get printed so I don’t know if css will work over here.

Sorry, I am trying to actually create a new jpeg file with rounded corners from an already existing jpeg file that doesn’t have round corners this is actually a photograph taken from a camera, so there are multiple/too many colors so I can’t use gif as well.

Also my site will only just generate the round corner image then afterwards it will get downloaded using a FTP program by the admin of the site and then using a system software will get printed, so in short my website will not be printing the image but rather just generate it

Answer 1

Try this:

<?php 
$input = 'example.jpg';
$size = getimagesize($input);
$background = new Imagick();
$background->newImage($size[0], $size[1], new ImagickPixel('red'));
$image = new Imagick($input);
$image->setImageFormat("png");
$image->roundCorners(575,575);
$image->compositeImage($background, imagick::COMPOSITE_DSTATOP, 0, 0);
$image->writeImage("rounded.jpg");
?>