Re: making multiple colours transparent in gifs

by uncle-joe(at)worldnet.att.net (Joe Carson)

 Date:  Tue, 17 Feb 1998 00:50:44 GMT
 To:  hwg-graphics(at)hwg.org
 Cc:  Michael Abramovich <mabram(at)balance.com.au>
 References:  westol com
  todo: View Thread, Original
On Tue, 17 Feb 1998 10:43:43 +1100, you wrote:

I agree with what Michael said, except for the part about Photoshop.
If you index the image colors before using the gif export, Photoshop
will then allow you to choose as many colors as you wish for
transparency, and view them in real time while choosing.=20

Joe


>I've stayed out of this thread, but have noticed an obvious =
misconception
>amongst many of the postees.
>
>>Steve Bassler and lots of others wrote:
>
>>You can only choose one color to be transparent,
>
>This is not true. You can make as many colours as you like transparent.
>
>They are, as everyone correctly states completely transparent, there are=
 no
>levels of transparency, but it seems that lots of people are unaware =
that you
>can make more than one colour transparent. This misconception probably =
comes
>from the programs people use to make their gifs transparent. Photoshop, =
Picture
>Publisher etc omly allow you to choose one colour to be transparent, and=
 thus
>most people think that is all you can do. If you go to PhotoImpact from =
Ulead,
>you will find in the Gif smart saver that you interactively choose as =
many
>colours as you like and see a real time preview as you choose them. You =
can
>also "unchoose" them. It is a great tool no self respecting webbie could
>possibly be without. I believe it can be used as a plug in for Pshop as =
well.
>
>- Michael A
>

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