Transparent background for photos

Hi,

Is there anyway I can make a picture's background ( an object on a coloured background or something ) transparent without losing the quality of the image ? not gif format because it ruins everything !

Does anybody know if there is a function or command in photoshop for example, that creates an effect similar to the chroma key in cinematography for photographs?

Bye , bye !

//moved

PNG works fine for that kind of pictures, you can even have % transperency(spell :O) ^^

zizucu: Welcome to Ozzu. Please don't post questions twice. I removed your second, identical question for you.

thanks,

I have tried as with the png but I am still not satisfied with the quality of the image.

a .gif will work, u just need the right settings.

i am guessing u are using fireworks

you could also make a square the size of your transparent canvas...and adjust the fill on your square...thus giving a colored transparency for a background

The only two formats that support transparency for web use are GIF and PNG.

GIF supports simple one colour off. PNG supports alpha transparency (256 levels of transparency on a 24bit colour pixel) for smooth gradients between the image and the colour/image it's laid on top of (just like a layer in a PSD file).

Are you asking what format to save in? How to create the photographs? Or how to remove the blue/greenscreen used in Chromakey photography?

If you're asking how to remove blue/greenscreens (or any other colour) for Chromakey photography, there are some excellent photoshop filters available for this purpose.

Personally, I recommend Ultimatte Advantedge (http://www.ultimatte.com/). It's not cheap ($495 for the Photoshop plugin, $1,495 standalone), but it is professional software, and an absolutely outstanding piece of kit.

You're also looking about another $100-150 for a good quality blue or greenscreen backdrop, plus whatever for good quality lights to light the background evenly and still have your subject well lit.