Lately we've been using 64 bit png's in our app (for OpengGL UV mapping). I added a routine to the PNGFormat so that it can load 64 bit images. It's a custom routine i added so that i didn't have to include our own version of the png library, the 64 bit image is copied in our own Pixels container class.
The thing is that i need to be able to draw thumbnails of those images in our juce components, so i could convert it back to 8 bit and draw it of course but i would like keep it around in the same container class.
So i was wondering wether you would like to add 64 bit support to the Image class?
On osx it would be trivial to draw the image to a CoreGraphics context, i'm not sure how that works on Windows though.