Re: [GD-DEVEL] trasparent image width antialiasing

On 2/1/07, yagyog <[email protected]> wrote:
> ----- Original Message -----
> From: "Pierre" <[email protected]>
> To: "yagyog" <[email protected]>
> Cc: <[email protected]>
> Sent: Thursday, February 01, 2007 4:04 PM
> Subject: Re: [GD-DEVEL] trasparent image width antialiasing
> [cut]
> >> >
> >> > These images are not correct. There is no alpha used in the text and
> >> > the green/red "backgournd "colors are still used.
> >> >
> >> > You have to create images _without_ background color and only use
> >> > _alpha_ for the text anti aliasing.
> >> >
> >> >> my result
> >> >> http://www.yag.altervista.org/varius/1/test.png
> >> >
> >> > Yes, and it is expected, you have green and red artifacts.
> >> >
> >> And this
> >> http://www.yag.altervista.org/varius/1/T1.png
> >
> > Yes, this one is correct.
>
> well therefore with an image of this type as I can make?

Using this image you can achieve what you want. The anti aliasing will
be kept. The alpha component is used to blend over the destination
image.

> I add: and if my
> image instead is flat but with the witnesses with antialing I cannot just
> make nothing?

If I understand your question correctly, no. The anti aliasing is done
against the existing background (green or yellow in your images).

By the way, which language do you use? PHP?
--Pierre