Opening custom-size DNG files. - General Discussion and Assistance - CHDK Forum
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Opening custom-size DNG files.

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Offline Microfunguy

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Opening custom-size DNG files.
« on: 25 / December / 2009, 17:03:33 »
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Using a modified version of CHDK, I am creating an in-camera DNG image from parts of eight separate images.
Obviously, the header contains modified information.

RawTherapee, Picasa and IrfanView open the DNG files but CS4 does not.

How do I open the DNG files with CS4  ?


David
« Last Edit: 25 / December / 2009, 18:47:40 by Microfunguy »
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Offline ewavr

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Re: Opening custom-size DNG files.
« Reply #1 on: 25 / December / 2009, 20:02:08 »
Quote from: Microfunguy on 25 / December / 2009, 17:03:33
RawTherapee, Picasa and IrfanView open the DNG files but CS4 does not.
How do I open the DNG files with CS4  ?
Photoshop uses "camera raw" plugin for opening dng files. If this plugin works correctly, probably your file has some invalid tags . Dcraw (=RawTherapee, Picasa, IrfanView) is less strict than Adobe and can open such files. You can validate dng file using dng_validate.exe tool from Adobe DNG SDK and/or upload such file somewhere.
« Last Edit: 25 / December / 2009, 20:04:49 by ewavr »
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Offline Microfunguy

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Re: Opening custom-size DNG files.
« Reply #2 on: 26 / December / 2009, 11:00:08 »
Quote from: ewavr on 25 / December / 2009, 20:02:08
probably your file has some invalid tags .

CS4 did not like me using the real ActiveArea of the sensor.
I had to set it to the size of the synthesised image.
I then had to define a suitable crop size and crop origin.

Incidentally, the dng verifier produced these warnings :-

DateTime is not a valid date/time
DateTime is not null-terminated
DateTime has non-ASCII characters.

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