Just scanned across some code and it reminded me of something that i have been meaning to ask for some time now

When you upload an image is its quality reduced?
i did see in two places that the value of 80% is used for uploads
I understand that in most cases it has little effect on the displayed image and helps with storage and bandwidth...

just thinking about an image that is continuously downloaded, modified and uploaded again...
at 80% quality every time I am guessing would cause some quality issues over time

its just a thought but perhaps should this not be globally configurable in component config?

I think I will rewrite a little bit he images management since Joomla 3.0 is proposing an image class.

In facts, you can change the 80% in your code and not in the builder for the moment

One more thing.
This 80% is only for creating the thumb. Thumb is always a reduced quality.
To answer your question, the original image is always stored without resampling.