TrueAlphaChannel 1424 magick/distort.c       (void) SeparateImageChannel(tmp_image,TrueAlphaChannel);
TrueAlphaChannel 2419 magick/image.c       case TrueAlphaChannel:
TrueAlphaChannel 2702 magick/image.c       status=SeparateImageChannel(image,TrueAlphaChannel);