uploaded image doesn't have to run through all presets

hello,

I have a site where I want to be able to rescale uploaded images and put a logo on it.
For this ImageCache is perfect and it works ok.

But my problem is: I have 4 logo's.
The logo to put on the picture depends on the node type.

ImageCache now runs all presets. This means copies of the image are made with each of the logos on it.
This uses quite a lot of server space ...

Is there a way to only run the presets that depend on the node-type where the images are uploaded?

Thanks for giving this question a little thought...

kind regards,
Geert