Print Page - WB shift in raw2dng proresHQ file.

Title: WB shift in raw2dng proresHQ file.
Post by: kylemoe on April 24, 2015, 06:00:48 PM

Hey guys,

Ive got an odd problem I'm not sure how to fix. The WB seems to have a mind of its own in the proresHQ .movs when I process my .raws with raw2dng.

This first photo is a dng in cameraraw on photoshop. When I bring in the dngs, they have tint at +66 and so I reset it to 0 to pull the magenta out. I also went -1 for exposure to regain a little info out the window. The photo beneath it is the same frame from the prores mov:

http://imgur.com/m6kDT5g

I know there are differences between the raw dng and the compressed prores, but thats not my issue. The issue is when you compare the prores screenshots to each other after the shift:

http://imgur.com/BA9X29I

So again, exact same dng raw settings in the picture on the top and a screenshot of the prores file beneath that, post wb shift.

What is going on? I can share the actual video too if that helps.

Thanks.

Title: Re: WB shift in raw2dng proresHQ file.
Post by: kylemoe on April 24, 2015, 06:22:53 PM

Heres the clip

https://vimeo.com/125924251

password: spiderman

Title: Re: WB shift in raw2dng proresHQ file.
Post by: Danne on April 24, 2015, 06:53:52 PM

Raw2dng when used with auto wb will produce non linear results which can lead to variations in wb. I fixed this and a lot of other things in cr2hdr-r.

Title: WB shift in raw2dng proresHQ file.
Post by: DeafEyeJedi on April 24, 2015, 08:22:33 PM

...and that's the beauty of @danne's latest app cr2hdr-r (http://www.magiclantern.fm/forum/index.php?topic=13512.msg130562#msg130562cr2hdr-r) with having the ability to use full control of wb!

Definitely worth to check out and play with...

8)

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Using Magic Lantern => Raw Video => Raw Video Postprocessing => Topic started by: kylemoe on April 24, 2015, 06:00:48 PM