Raw Conversion Speed

[david-vj]

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[Gilles Caulier-4]

2009/4/4 davidvincentjones <[hidden email]>:

>
> With my older version of Digikam I was quite content to do the raw
> extraction, color adjustment and save all in DK. It was all very convenient.
> However DK 0.11.0 appears to be much slower during raw extraction ... I
> decided to make a quick comparison with my 15 mp. raw data sets with color
> management turned on..:
> Digikam ...... Open-File/ Import /Save (using presets) took 2.5 minutes (on
> my rather slow machine)
> UFraw ........ Open-File /Save (also using presets) slightly less than 1
> minute.
>
> Is this simply a problem with code under development? This is a massive
> difference.

You cannot compare digiKam and UFRaw like this...

- Which RAW file format ?
- Which libraw/libkdcraw you use (go to Help/components info for details).
- Which settings you use for Raw demosaicing ? Do you use Noise
reduction for ex which use a lots of CPU ?
- Do you use Raw import tool for editor ?

Here i cannot see any difference between digiKam 0.9.5 and 0.10.0 with
my Minolta Raw files (i shot always in raw).

Gilles Caulier
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[david-vj]

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[Gilles Caulier-4]

2009/4/5 davidvincentjones <[hidden email]>:

>
>
>
> Bugzilla from [hidden email] wrote:
>>
>> 2009/4/4 davidvincentjones <[hidden email]>:
>>>
>> Gilles ... looks like you are perfectly correct: Some details.
>> I am using Canon CR2 format from a 15 mp. sensor.
>> Libraw is 0.7.1 and LibKcdraw is 0.5.0 .. same on both Digikam and
>> Showfhoto versions 0.11.0
>> I see a significant (big big) change of speed when Noise and Chrom.
>> reduction is disabled.

Ah... ok

Now, look if you can compile libkdcraw using libopenmp support. This
will parallelize some demosaicing operations to speed up Raw decoding.

Look instructions to README file from libkdcraw.

>> I am not generally using Raw for my editing however.
>>
>> I am finding this version of Showfoto to be very stable but Ihave had
>> stability problems with Digikam that
>> all require a full system re-boot in order to restart and reset the
>> program (a real nuisance).
>> I am sure that these afflictions will subside in due time.
>>
>> The overall file management and edit capabilities of Digikam are awesome.

thanks

>>
>> David
>>
>>
>> You cannot compare digiKam and UFRaw like this...
>>
>> - Which RAW file format ?
>> - Which libraw/libkdcraw you use (go to Help/components info for details).
>> - Which settings you use for Raw demosaicing ? Do you use Noise
>> reduction for ex which use a lots of CPU ?
>> - Do you use Raw import tool for editor ?
>>
>> Here i cannot see any difference between digiKam 0.9.5 and 0.10.0 with
>> my Minolta Raw files (i shot always in raw).
>>
>> Gilles Caulier
>> _______________________________________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
>>
>>
>
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