variable transparent overlay VS shink dithering

can anyone take a shot how www.freelogo.net dithers the logo text to
the background color?

I thought it might be using variable transparency in png in the faded
colors, but its probably easier just to overlay a black and white
graphic of the letters and shrink it. Does image resizing in php do
dithering?

Herc

In news:1119495424.432730.89890@f14g2000cwb.googlegro ups.com,
herc777@hotmail.com <herc777@hotmail.com> said:
> can anyone take a shot how www.freelogo.net dithers the logo text to
> the background color?

Do you mean "dither," or "anti-alias?"

> I thought it might be using variable transparency in png in the faded
> colors, but its probably easier just to overlay a black and white
> graphic of the letters and shrink it. Does image resizing in php do
> dithering?

I have a hunch that you've got a terminology crisis on your hands.

--
Steve

http://www.answers.com/topic/dithering?method=6

Dithering Text
Text is also dithered. Notice how much softer the word DATABASE is at
the top of this example, compared with the undithered word below it.
The magnified view shows where lighter blue pixels filled in for the
curves. When dithering is performed against the edges of an image, it
is called "anti-aliasing."

Even though its doing the opposite by ADDING more inbetween colors, the
dither algorithm will perform antialiasing as long as the color palette
has room.

I just read the GD2 library does nicer thumnails than GD1 so that
should handle it if I overlay the images at a larger size and shrink
them.

Herc