function image_imagemagick_blur in ImageCache Actions 7

Same name and namespace in other branches

1. 8 canvasactions/canvasactions.inc \image_imagemagick_blur()

Imagemagick toolkit specific implementation of the blur effect.

See http://www.imagemagick.org/Usage/blur/.

Parameters

stdClass $image:

int $intensity: The "intensity" of the blur effect.

Return value

boolean True on success, false otherwise.

File

canvasactions/canvasactions.inc, line 1184

Code

function image_imagemagick_blur(stdClass $image, $intensity) {

  // To get similar results asd with the GD factor, we use a formula to alter
  // the intensity into the sigma value that is passed to IM.
  $sigma = 4.0 + 0.8 * $intensity;
  $image->ops[] = '-blur ' . escapeshellarg(sprintf('0x%f', $sigma));
  return TRUE;
}