sepiaToneImage not work correctly with imagick 2.3.0

[badabou]

Code: Select all

$im = new Imagick('anim.gif');

foreach ($im as $f)
{
   $f->sepiaToneImage(80);
}

header('Content-type: image/gif');
echo $im->getImagesBlob();
exit();

imagick module version 2.3.0
imagick classes Imagick, ImagickDraw, ImagickPixel, ImagickPixelIterator
ImageMagick version ImageMagick 6.5.7-1 2009-10-25 Q16 http://www.imagemagick.org

anim.gif


RESULT


Do you have an idea to solve this problem?

Thank you.