Re: Making TIFFs with transparency

• Subject: Re: Making TIFFs with transparency
• From: Guillaume Borios <email@hidden>
• Date: Wed, 3 Oct 2001 16:43:36 +0200

that's what I'm doing too, but if you have a closer look at the logs in Console, then you get a message saying :

2001-10-03 13:45:14.614 Solitude[818] Warning: TIFF image with unknown extra samples assumed to have unassociated alpha. RGB values have been premultiplied

So now another question is : "how to make this new channel a *real* alpha channel recognized by the system?"

-gyom

Le mardi 2 octobre 2001, ` 07:41 PM, Peter Ammon a icrit :

On Tuesday, October 2, 2001, at 05:11 AM, Ryan Dary wrote:

Can someone explain to me how to make TIFF images which have
transparency? I am trying to make the icons for the toolbar, but there
is always a white background, and it looks terrible.

I am using a transparent background in photoshop before exporting to
TIFF, so I am not sure why it is using "white" for the background of the tiff.

Any ideas?

- Ryan

To create a transparent TIFF in Photoshop, create an alpha channel, and make it white where the object should be opaque and black where it should be transparent.

Hope this helps.

-Peter

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