Re: [GD-DEVEL] as they are written given in the channel alpha ?

On 2/13/07, yagyog <[email protected]> wrote:
>
> ----- Original Message -----
> From: "Pierre" <[email protected]>
> [cut]
> >> >> To: "yagyog" <[email protected]>
> >> >> I would want to create rows png that a channel alpha with of the data
> >> >> (example has: opening it with photoshop, gimp)
> >> >
> >> > Can you show me an example?
> >> >
> >> Similar to this
> >> http://www.yag.altervista.org/varius/1/T1.png
> >
> > You can't generate text with alpha as antialias.
> >
> > That's coming though, more about this topic in the next 2-3 weeks :)
> >
>
> excuse but I have not understood.
>
> I try to make it simpler. given one value x and y as I make to change the
> brightness (alpha) of those pixel?
>

It is not possible to draw a string while keeping the alpha channel as
anitialiasing, like in your T1.png image. The brightness has nothing
to do with that.

If I understand your goal correctly, you would like to transform the
gray value of a given pixel into a black pixel with a alpha channel,
where the alpha channel is defined by the original gray value. Is it
what you want?

--Pierre