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Save RAW files in DNG format instead of RAW

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Offline DataGhost

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Re: Save RAW files in DNG format instead of RAW
« Reply #20 on: 17 / April / 2008, 04:57:11 »
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Quote from: vit40 on 12 / April / 2008, 07:21:16
Well, offline conversion routine could erase raw after conversion to DNG and leave JPG + DNG

But since SD cards are quite cheap right now, I don't hink it's worth the efforts of developers

I'm wondering, is there a procedure to convert raw to "real" cr2 somewhere in the firmware and only needs to be called
Not in the S5 anyway, as far as I know. If I recall correctly, those files can be identified by the string 'HEAPCCCD'. The absence of this string makes it very easy to assume that the functionality isn't present.

As for the conversion: It takes a couple of seconds on my Sempron 3000+. The ARM architecture is quite powerful, though, it's possible that an implementation in ASM can be very fast. I'd have to look into the DNG and PS-RAW format, though, but I'm willing to give it a try if it doesn't look too hard.
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Offline mrproper

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Re: Save RAW files in DNG format instead of RAW
« Reply #21 on: 17 / April / 2008, 11:42:42 »
Quote from: DataGhost on 17 / April / 2008, 04:57:11
As for the conversion: It takes a couple of seconds on my Sempron 3000+. The ARM architecture is quite powerful, though, it's possible that an implementation in ASM can be very fast. I'd have to look into the DNG and PS-RAW format, though, but I'm willing to give it a try if it doesn't look too hard.

Takes a bit longer here, but remember, it doesn't have to be on the spot. You could develop the CRWs later, by using a menu function, that applies the jpg curves and exif data to the CRW, generates the DNG and delets the JPG and CRW files to save space. As I calculated above, that means you can take twice the RAW pictures on the same card.
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Offline Barney Fife

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Re: Save RAW files in DNG format instead of RAW
« Reply #22 on: 17 / April / 2008, 16:47:17 »
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« Last Edit: 22 / April / 2008, 18:08:34 by Barney Fife »
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Offline mrproper

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Re: Save RAW files in DNG format instead of RAW
« Reply #23 on: 17 / April / 2008, 16:53:03 »
Quote from: Barney Fife on 17 / April / 2008, 16:47:17
I propose that all digital camera owners be cursed with 35mm-film for one year with only 24 and 36-exposure rolls so they realize how spoiled they've become so fast. :)



Don't worry, I keep thinking about that everyday, even though I use an two of those antique cameras.. or three... it was soooo long ago... :P

Btw, why is my karma -1? Does someone hates me already?
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Offline Barney Fife

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Re: Save RAW files in DNG format instead of RAW
« Reply #24 on: 17 / April / 2008, 17:03:42 »
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« Last Edit: 22 / April / 2008, 18:08:56 by Barney Fife »
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Offline PhyrePhoX

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Re: Save RAW files in DNG format instead of RAW
« Reply #25 on: 18 / April / 2008, 02:25:25 »
afaik you cant judge anyones karma when you have under 5 posts. so that quickly lets your "rogue karma judges that sign up only for judging" dissolve :p :D
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Offline Barney Fife

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Re: Save RAW files in DNG format instead of RAW
« Reply #26 on: 18 / April / 2008, 09:34:18 »
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« Last Edit: 22 / April / 2008, 18:09:16 by Barney Fife »
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Offline mrproper

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Re: Save RAW files in DNG format instead of RAW
« Reply #27 on: 18 / April / 2008, 10:27:09 »
Hmm... can I use CHDK for DNA sequencing? I should request that in the right topic :D
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Offline Barney Fife

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Re: Save RAW files in DNG format instead of RAW
« Reply #28 on: 18 / April / 2008, 11:19:43 »
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« Last Edit: 22 / April / 2008, 18:09:35 by Barney Fife »
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Offline mrproper

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Re: Save RAW files in DNG format instead of RAW
« Reply #29 on: 18 / April / 2008, 12:01:26 »
Quote from: Barney Fife on 18 / April / 2008, 11:19:43
However, you can use camera+CHDK as an amazing near-lab-quality advanced light analysis tool. See the Creative Uses section on this issue. :)

Already did: Spectral analysis by *mrproper08 on deviantART
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