(PECL imagick 2.1.0)
Imagick::mergeImageLayers — Merges image layers
Merges image layers into one. This method is useful when working with image formats that use multiple layers such as PSD. The merging is controlled using the layer_method which defines how the layers are merged. This method is available if Imagick has been compiled against ImageMagick version 6.3.7 or newer.
One of the Imagick::LAYERMETHOD_* constants
Returns TRUE on success.
Throws ImagickException on error.