Magic Lantern Forum

Showcasing Magic Lantern => Share Your Photos => Topic started by: mvejerslev on August 02, 2015, 03:19:31 AM

Title: Superresolution Supermoon photo using raw video
Post by: mvejerslev on August 02, 2015, 03:19:31 AM
Hi guys,

I thought you might enjoy this photo of the full moon. Its a 100% crop from a 400mm L lens on a canon 5DII.

(https://www.magiclantern.fm/forum/proxy.php?request=https%3A%2F%2Ffarm6.staticflickr.com%2F5557%2F14998599357_199c595b2a_o.jpg&hash=56769cca94552b9e6302378453eaf1ad)

I used MLV video to record it (crop mode on tripod), and then used about 240 aligned and averaged frames to achieve 'superresolution' - to eradicate random image noise, and obtain a much sharper image free of atmospherical disturbances. I did this in floating point mode to also achieve a higher color bit depth in PS CC (final image is 32bit, but also - no bigger than what you see here).

Best,

Mathias
Title: Re: Superresolution Supermoon photo using raw video
Post by: TechnoPilot on August 03, 2015, 07:18:48 PM
Very cool use of MLV video!  Gorgeous work!
Title: Re: Superresolution Supermoon photo using raw video
Post by: Canon eos m on August 23, 2015, 06:14:56 PM
Cool!
Title: Re: Superresolution Supermoon photo using raw video
Post by: mvejerslev on August 25, 2015, 03:19:07 PM
Thanks guys! You should try it out :-) Its another of those computational photography tricks we love. In this case, raw video was just as good as using full res raw photos, since the MLV crop mode video corresponds to 1:1 crop on the sensor anyway. And the workflow was arguably easier using MLV (lower: data load, superflous data, shutter clicks).
Title: Re: Superresolution Supermoon photo using raw video
Post by: Lemondixon on December 05, 2015, 07:53:12 PM
Hi there,

I have just loaded ML on my Canon 5D Mk II for the first time and was browsing the forum to get a better understanding of what I can do with this for (primarily) still images. I am really impressed at what you've achieved here but I don't yet understand enough to figure out how you have used ML and post processing techniques to obtain this amazing "super resolution" image result.

Are you able to share how you did this or point me to where I can find out more about the techniques you've used here?

Thanks

Steve
Title: Re: Superresolution Supermoon photo using raw video
Post by: mvejerslev on January 16, 2016, 07:11:02 PM
Hey there Steve - sure, thanks for asking.

You need to read up on 'stacking'. Its a common technique in astrophotography, where you place several frames (layers in potoshop), of the same scene on top of each other, register them exactly, and then average the pixel content through the layer stack in various ways. For instance Median or Mean values of each pixel stack. The result is that you get rid of random image noise and atmospheric haze, because these factors are random from image to image. I believe you need Photoshop CC to have access to Photoshops stacking functions, though it is possible to stack manually.

The more photos you stack, the cleaner the result generally. In this case, I used something like 240 frames off Magic Lantern Raw video. I could have shot 1000+ raw frames and chosen the best frames from that, but shooting video is way more practical in this scenario.