Save RAW files in DNG format instead of RAW - page 23 - Feature Requests - CHDK Forum
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Save RAW files in DNG format instead of RAW

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HMrKzsy

Re: Save RAW files in DNG format instead of RAW
« Reply #220 on: 02 / December / 2008, 02:05:45 »
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Quote from: ewavr on 24 / November / 2008, 19:28:19
So, DNG support now in trunk for all cameras, except:
 - g9 (DNG for g9?)
 - a590, ixus50(sd400), ixus75(sd750) - because DNG4PS2 don't support them
 - ixus40(sd300) - due to mismatch in RAW size between CHDK and DNG4PS2 (what RAW size is correct?)

FWIW:
I have the Ixus 50 and it and the Ixus 55 seems to be basically the same camera. The DNG4PS2 Windows Beta does support the latter. I tried that profile and the results are as good as can be expected. YMMV.
« Last Edit: 02 / December / 2008, 02:19:29 by HMrKzsy »
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Offline PhyrePhoX

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Re: Save RAW files in DNG format instead of RAW
« Reply #221 on: 02 / December / 2008, 05:08:12 »
if a badpixel.bin was created in camera, it *should* also contain at least the platform id of the camera it was created in. and if loaded, should be matched against the platformid of the camera that is loading it. people who swap their sdcards between different cameras will get wrong results if there isnt a precaution coded like this (even people who swap cards between same models, but i guess we cannot detect that).
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Offline j13l

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Re: Save RAW files in DNG format instead of RAW
« Reply #222 on: 02 / December / 2008, 12:01:30 »
Keep up the good work.

The suffix .DNG seems not possible.
Is the prefix DNG_ would be possible?

Thank you
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Offline fudgey

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Re: Save RAW files in DNG format instead of RAW
« Reply #223 on: 02 / December / 2008, 13:35:37 »
Quote from: PhyrePhoX on 02 / December / 2008, 05:08:12
if a badpixel.bin was created in camera, it *should* also contain at least the platform id of the camera it was created in. and if loaded, should be matched against the platformid of the camera that is loading it. people who swap their sdcards between different cameras will get wrong results if there isnt a precaution coded like this (even people who swap cards between same models, but i guess we cannot detect that).

Yea, although serial number would be better, people are using SDM with multiple cameras of the same model after all.
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Offline PhyrePhoX

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Re: Save RAW files in DNG format instead of RAW
« Reply #224 on: 02 / December / 2008, 13:46:29 »
oh, can we access the s/n number? i guess it is in the params somewhere. yes, serial number would be better than platform id.
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Offline fudgey

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Re: Save RAW files in DNG format instead of RAW
« Reply #225 on: 02 / December / 2008, 14:18:03 »
Quote from: PhyrePhoX on 02 / December / 2008, 13:46:29
oh, can we access the s/n number? i guess it is in the params somewhere. yes, serial number would be better than platform id.

Hmm.. I thought it was written in EXIF MakerNotes (and thus obviously accessible... those who've been working on DNG might know?) but on a quick check with exiftool I couldn't find it.

A serial number is visible via USB (e.g. in lshal output on Ubuntu), but it's true that this is something that could be written inside a USB subsystem and not easily accessible to us. But that's one way of getting the number so one can search for it in-camera.
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Offline reyalp

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Re: Save RAW files in DNG format instead of RAW
« Reply #226 on: 02 / December / 2008, 22:47:47 »
Quote from: j13l on 02 / December / 2008, 12:01:30
Keep up the good work.

The suffix .DNG seems not possible.
Is the prefix DNG_ would be possible?

Thank you
Possible, but this changes behavior of the camera delete function. See Some notes on file prefix and extension treatment
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Offline j13l

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Re: Save RAW files in DNG format instead of RAW
« Reply #227 on: 03 / December / 2008, 05:56:48 »
@reyalp

Thank for the answer.
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Offline laetilodie

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Re: Save RAW files in DNG format instead of RAW
« Reply #228 on: 03 / December / 2008, 08:15:24 »
I have a big bug with the last firmware revision (613).
If i delete a picture, only the jpg is delete, the CRW is always in th SD.
Purge raw work but reboot camera doesn't work.
« Last Edit: 03 / December / 2008, 08:49:19 by laetilodie »
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Offline binsurf

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Re: Save RAW files in DNG format instead of RAW
« Reply #229 on: 04 / December / 2008, 09:53:26 »
I take it we won't be seeing the .dng extension in our options for a while?
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