On Wed, 28 Jan 1998, Grassel Guido NRC/Hki wrote:
> 1. question: Suppose one sets the transparency level to 0% (= fully opaque),
> what color value will pixels have which are marked as transparent in the
> image content data? Or does MHEG not want to specify on this?
In the GIF format the transparent colour is specified as an index in the
palette table which specifies the transparent colour. I don't know how this
is handled in other image formats (like PNG), but I would guess that there
is always a "can't handle transparency"-colour.
> 2. How is the value of the MHEG transparency attribute and the level of
> transparency encoded in the image content data to be conbined? Does MHEG
> want to specify on this issue?
Actually, it is(?) (see. 54.4).
Best regards,
Andreas
-- o _ Andreas Kraft (\_|_) GMD FOKUS, kraft@fokus.gmd.de, +49 30 3463-7232 T> ] [ The sky is the limit