Hi there,
I am afraid none of this will work.
The only thing I can change is the exposure. No other value is available for user modification.
I could do quick burst mode, but "quick succession" isn't the right term here because
Tello can only handle one photo at the time. So I have to take the photo, download it, take the next. Downloading just one HQ photo can take anywhere between 3s and over a minute depending on the wifi link quality. So much for "rapid".
The good point is:
Tello has a very stable hover and doesn't move much so even such a slow burst could probably help.
Tello creates a JPG file onboard, which is only downloaded for storage. We don't have access to RAW files.
Because this JPG file has some broken file header I added the options to re-encode it, which just loads it into a bitmap and saves it as a 100% JPG or PNG. So this PNG handling was just a by-product of fixing this broken JPG header, which caused trouble in some gallery apps.
Cheers!