Using the imagick driver to crop and resize a png will create artifacts in the output

[mvveggel]

Describe the bug

When using the Imagick driver to crop and resize an image the output contains artifacts, most noticeable in transparent areas (the transparent area is mostly black with random noise).
This does not happen in version <= 3.10.2
When either crop or resize is skipped the artifacts do not appear

Code Example

$imageManager = new \Intervention\Image\ImageManager(new \Intervention\Image\Drivers\Imagick\Driver());
$image = $imageManager->read('Sample.png');
$image->crop(2200, 1500);
$image->resize(220, 150);
$image->encodeByMediaType(null, 90);
$image->save('SampleCropped.png');

Expected behavior

The image is cropped and resized without adding artifacts

Images

Environment:

• PHP Version: 8.3
• OS: Linux (Ubuntu 22)
• Intervention Image Version: 3.11.0
• GD or Imagick: Imagick 6.9.11-60

[olivervogel]

Thanks for reporting. I will look into this.

Although I can confirm the error, there is a workaround here. I believe the same result can be achieved with the following call.

$imageManager = new \Intervention\Image\ImageManager(new \Intervention\Image\Drivers\Imagick\Driver());
$image = $imageManager->read('Sample.png');
$image->cover(220, 150);
$image->save('SampleCropped.png');

[olivervogel]

This should work now with 3.11.1. However, I think it is better to use cover(), which is more efficient than your code from the example.

[mvveggel]

I can confirm it has been resolved in 3.11.1, cover seems to be a better way so I'll look into that thanks