[Bug 148561] New: Missing options in RAW conversion; terrible conversion of dark photos

[John Goerzen]

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           Summary: Missing options in RAW conversion; terrible conversion
                    of dark photos
           Product: digikam
           Version: 0.9.1
          Platform: Debian testing
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: jgoerzen complete org


Version:           0.9.1 (using KDE KDE 3.5.7)
Installed from:    Debian testing/unstable Packages
OS:                Linux

There are some important options to have.

#1 is to use camera exposure settings instead of applying autoexposure.  Applying autoexposure makes some really wacky decisions, such as turning nice dark nighttime photos into noisy things with daytime brightness.

In general, there are a lot of dcraw options that digikam is not supporting but ought to.  See the dcraw manpage for more.
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[Gerhard Kulzer]

Am Monday 06 August 2007 schrieb [hidden email]:

> ------- You are receiving this mail because: -------
> You are the assignee for the bug, or are watching the assignee.
>
> http://bugs.kde.org/show_bug.cgi?id=148561
>            Summary: Missing options in RAW conversion; terrible conversion
>                     of dark photos
>            Product: digikam
>            Version: 0.9.1
>           Platform: Debian testing
>         OS/Version: Linux
>             Status: UNCONFIRMED
>           Severity: wishlist
>           Priority: NOR
>          Component: general
>         AssignedTo: digikam-devel kde org
>         ReportedBy: jgoerzen complete org
>
>
> Version:           0.9.1 (using KDE KDE 3.5.7)
> Installed from:    Debian testing/unstable Packages
> OS:                Linux
>
> There are some important options to have.
>
> #1 is to use camera exposure settings instead of applying autoexposure.
> Applying autoexposure makes some really wacky decisions, such as turning
> nice dark nighttime photos into noisy things with daytime brightness.
>
> In general, there are a lot of dcraw options that digikam is not supporting
> but ought to.  See the dcraw manpage for more.

 You can configure all dcraw parameters, go to Setting->digikam

configure...->Raw decoding.

Please kill this bug report.

Thanks
Gerhard

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[Gerhard Kulzer]

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------- Additional Comments From gerhard kulzer net  2007-08-07 23:24 -------
Am Monday 06 August 2007 schrieb jgoerzen complete org:
[bugs.kde.org quoted mail]
 You can configure all dcraw parameters, go to Setting->digikam
configure...->Raw decoding.

Please kill this bug report.

Thanks
Gerhard
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[John Goerzen]

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------- Additional Comments From jgoerzen complete org  2007-08-07 23:55 -------
No.

You can set *SOME* dcraw parameters.  Nowhere even CLOSE to all in that box.
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[Guillaume Castagnino-4]

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------- Additional Comments From guilc fr st  2007-08-08 23:09 -------
I think it could be a good thing to manage more dcraw options in libkdcraw
For example : I would like to enable chromatic aberration reduction (with "-C 0.9994 1.0001" in my case), and I cannot because this option is not managed in the libkdcraw widget...

I think a good solution, that should not need hard work to maintain is to provide a free text field, to let advanced users enter custom dcraw options manually.
Such a field has the big advantage to let the "advanced user that read the dcraw manpage" manage advanced or new options of dcraw that are not managed with the standard libkdcraw widget.
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[Gilles Caulier-4]

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------- Additional Comments From caulier.gilles gmail com  2007-08-15 08:02 -------
Guillaume,

libkdcraw is a wrapper around dcraw command line program. All options provided by settings widget are fully tested. Add a field to control more/new dcraw wich have been yet tested with wrapper is a wrong way. Also, this way to control more options sound like the old Linux GUI philosophy. It's weird : it's will be infernal to debug something as well.

Controlling and maintain a compatibility between dcraw version is already complex. In the pass, digiKam used the version of dcraw installed by user on computer. Because dcraw author break command lines options compatibility between dcraw version, it's the hell...

But, i'm agree with you. more dcraw options must be added to GUI in the future. It's planed but it will be done progressivly...

Gilles Caulier
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[Gilles Caulier-4]

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caulier.gilles gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |libkdcraw
            Product|digikam                     |kipiplugins
            Version|0.9.1                       |unspecified
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[Gilles Caulier-4]

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           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|digikam-devel kde org       |kde-imaging kde org
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