Well, it looks like I'm the first one out of the gate here.
I have processed the TIF files, and have not gone back to the source video streams.
As in my other attempts, I have relied almost exclusively on
PixInsight (currently available in a time-limited full version for free). It's a tool with a fairly high learning curve, but it allows very fine control of the image. Most of the processing below was done in a 64-bit space. While the original data doesn't have that granularity, processing with this precision eliminates any rounding errors. Hey, it might not make any difference in this case, but it is cool knowing it can be done.
Here was my process:
- Open each image in PixInsight, change to grayscale, save as FITs files
- Open in CCDStack, align based on central region, save again
- Color combine in PixInsight, using LRGB combine (w/o L) and an even 1/1/1 R/G/B balance
- Apply a curves transform, generally darkening the image
- Perform a Weiner deconvolution, 2.75 st. dev, 1.8 shape. This brings out the features in the planet's clouds.
- Another modest curves to adjust contrast and a curve on color saturation (a PixInsight feature) to boost the color.
- Another modest Weiner deconvolution, 1.5 st. dev and 1.75 shape
- A very modest GREYCstoration noise reduction (0.2 magnitude)
This is really great data to work with. Mike, thanks for the opportunity! I've got to get one of those DMK cameras, although I'm waiting now as it is June gloom here in Los Angeles. Only a rare peek at the sky here near the ocean.
Clear skies,
--Andy