[Digikam-users] half size raw preview: not available for Canon CRW or CR2?

Anders Stedtlund falolaf at gmail.com
Sun Oct 2 15:34:10 BST 2011 

Building right now.

Are there any penalities running debugfull? I mean performance.

/Anders

2011/10/2 Gilles Caulier <caulier.gilles at gmail.com>:
> 2011/10/2 Gilles Caulier <caulier.gilles at gmail.com>:
>> 2011/10/2 Anders Stedtlund <falolaf at gmail.com>:
>>> Do I need to build with debug?
>>
>
> Ah sorry. If you have build yourself digiKam and co, yes, you need to
> turn on debug statements.
>
> Look in README file, it's explained. There is an option to add to
> cmake confiure command line. It's very simple :
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/README#L141
>
> I use debugfull mode on my computer to hack program.
>
> Gilles Caulier
>
>> No. Just install debug package of digiKam, libkexiv2, and libkdcraw.
>>
>> Run kdebugdialog, and turn on KExiv2, KDcraw, and digiKam debug space.
>>
>> Start digiKam from a console. Select a Raw file and show preview. Look
>> message printed on the console.
>>
>> Gilles Caulier
>>
>>>
>>> This is what I get now:
>>> digikam(32662)/digikam (core) Digikam::DMetadata::getIccProfile: Exif
>>> color-space tag is sRGB. Using default sRGB ICC profile.
>>> digikam(32662)/KEXIV2 KExiv2Iface::KExiv2::getImageOrientation:
>>> Orientation => Exif.Image.Orientation =>  1
>>>
>>>
>>> /Anders
>>>
>>> 2011/10/2 Gilles Caulier <caulier.gilles at gmail.com>:
>>>> On my computer, with option enabled on setup dialog :
>>>>
>>>> digikam(10248)/KDCRAW KDcrawIface::KDcraw::loadHalfPreview: Try to use
>>>> reduced RAW picture extraction
>>>> Scaling with darkness 0, saturation 3947, and
>>>> multipliers 1,937500 1,000000 1,777344 1,000000
>>>> Converting to sRGB colorspace...
>>>> digikam(10248)/KDCRAW KDcrawIface::KDcraw::loadHalfPreview: Using
>>>> reduced RAW picture extraction
>>>>
>>>> It's an ARW raw file show in preview mode from album icon view.
>>>>
>>>> Gilles Caulier
>>>>
>>>> 2011/10/2 Gilles Caulier <caulier.gilles at gmail.com>:
>>>>> Just a question about this problem.
>>>>>
>>>>> When you turn on debug space with kdebugdialog (kdcraw, kexiv2,
>>>>> digiKam), do you sees omething special in the console when you show
>>>>> raw preview ?
>>>>>
>>>>> Gilles Caulier
>>>>>
>>>>> 2011/10/2 sleepless <sleeplessregulus at hetnet.nl>:
>>>>>> Op 02-10-11 12:51, Anders Stedtlund schreef:
>>>>>> Hi Anders,
>>>>>> Thanks for your precise investigations.
>>>>>> I prefer to figure out the problems as much as possible, so the programmers
>>>>>> don´t loose valuable time on it. But I ran out of ideas.
>>>>>> I forwarded this tread to the programmers in the hope for some luminous idea
>>>>>> about what´s going on.
>>>>>>
>>>>>>> Hi Rinus,
>>>>>>>
>>>>>>> I have tested, many times, your approach but I can't reproduce your
>>>>>>> behaviour (hope that I understood you correctly). It always says
>>>>>>> "Embeded JPEG Preview", and the same size of the preview is shown.
>>>>>>>
>>>>>>> Can you reproduce both in light table and in album view?
>>>>>>
>>>>>> yes I can, but for the moment it keeps saying
>>>>>> "Embeded JPEG Preview¨
>>>>>>>
>>>>>>> I have measured with kruler and I have these figures. All measures are
>>>>>>> the width of the image.
>>>>>>>
>>>>>>> My screen is 1366x768. The test image is in landscape, 3272x2178. (Canon
>>>>>>> SRAW1)
>>>>>>>
>>>>>>> In album view the preview  measures around 1040 pixels. Which digiKam
>>>>>>> says is 32% in zoom. This should give about 3250 pixels in 100%.
>>>>>>> (Quite close)
>>>>>>>
>>>>>>> In light table the preview measures around 638 pixels, which digiKam
>>>>>>> says is 19% in zoom. This should give about 3358 pixels in 100%. (A
>>>>>>> bit over)
>>>>>>>
>>>>>>> I assume that the embedded preview isn't the same size, in pixels, as
>>>>>>> the main image? Hence, I always see the main image as preview?
>>>>>>
>>>>>> I guess, that´s the case here indeed. Do you know if your images actually
>>>>>> have an embedded jpeg?
>>>>>>>
>>>>>>> Another thing I have seen during these tests is that if I have enabled
>>>>>>> the load full-sized images for the album view and the digiKam window
>>>>>>> is maximised, I can't have the preview smaller than slightly bigger
>>>>>>> than "fit to window". This means that there is a scroll bar to the
>>>>>>> right that I can scroll a pixel or so. And if I manually types e.g.
>>>>>>> 20% zoom it immediately returns to 32%. But that might be another
>>>>>>> problem...
>>>>>>
>>>>>> yes, and I found that the image sometimes is being displayed as 640% but
>>>>>> reported as 100%.
>>>>>>
>>>>>> It looks like a real mess, but I hope it is not what it looks like.
>>>>>> Best,
>>>>>> Rinus
>>>>>>>
>>>>>>> /Anders
>>>>>>>
>>>>>>> 2011/10/2 sleepless<sleeplessregulus at hetnet.nl>:
>>>>>>>>
>>>>>>>> Op 02-10-11 08:13, Anders Stedtlund schreef:
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I would say that for me the settings doesn't make any difference
>>>>>>>>> actually. Not in album view, not in light table. That's odd.
>>>>>>>>>
>>>>>>>>> In album view the image is at 32% when fit to window. In light table
>>>>>>>>> it's at 19% when fit to window.What size should I expect from the
>>>>>>>>> embedded
>>>>>>>>> preview?
>>>>>>>>
>>>>>>>> Hi Anders,
>>>>>>>>
>>>>>>>> This is completely dependent of the resolution of your screen and the way
>>>>>>>> you set up your screen layout.
>>>>>>>> The way I checked was by estimating (measuring is better) the view window
>>>>>>>> against the whole screen. In my case it is about half screen height which
>>>>>>>> equals aproximately 600 pixels.
>>>>>>>> Setting photosize to 100 % I need 6 times click the slider downward, so
>>>>>>>> my
>>>>>>>> picture height size equals 3600 pixels, wich is for me the assurance I am
>>>>>>>> looking at the raw picture and not at embedded preview.
>>>>>>>> If I look at embedded preview, I need only one click to cover the whole
>>>>>>>> image.
>>>>>>>>
>>>>>>>> But the nasty thing is I could not reproduce what I did yesterday, today
>>>>>>>> it
>>>>>>>> was only possible to view the real thing and not the embedded preview
>>>>>>>> even
>>>>>>>> though it kept saying ¨embedded jpeg prview¨
>>>>>>>>
>>>>>>>>
>>>>>>>> But repeatedly doing for several times:
>>>>>>>> Settings->Configure Digikam->lighttable->¨load full sized image
>>>>>>>> DEchecked¨
>>>>>>>> and
>>>>>>>> Settings->Configure Digikam->album view->¨embedded preview loads
>>>>>>>> fullsized
>>>>>>>> images¨ DEchecked
>>>>>>>>
>>>>>>>> Settings->Configure Digikam->lighttable->¨load full sized image checked¨
>>>>>>>> and
>>>>>>>> Settings->Configure Digikam->album view->¨embedded preview loads
>>>>>>>> fullsized
>>>>>>>> images¨ checked
>>>>>>>>
>>>>>>>> brought it back.
>>>>>>>>
>>>>>>>> I can view either Raw or embedded, but it keeps saying ¨embedded jpeg
>>>>>>>> prview¨ in either case.
>>>>>>>>
>>>>>>>> I would appreciate if you try to do it with repeatedly changing settings
>>>>>>>> to
>>>>>>>> see if you can change the results as I managed. We have clearly a problem
>>>>>>>> here, but it is still so randomly that I can not make a useful bug
>>>>>>>> report.
>>>>>>>> We should at least know what we are looking at without counting pixels.
>>>>>>>> Some other guy made already a report and did a withdrawel of it, because
>>>>>>>> his
>>>>>>>> problem was cured. Maybe some others will do some investigations in to
>>>>>>>> this
>>>>>>>> matter as well.
>>>>>>>> Best,
>>>>>>>> Rinus
>>>>>>>>
>>>>>>>>
>>>>>>>>> /Anders
>>>>>>>>>
>>>>>>>>> 2011/9/30 sleepless<sleeplessregulus at hetnet.nl>:
>>>>>>>>>>
>>>>>>>>>> Some investigation brougth this forward. In my case it says for PEF
>>>>>>>>>> files
>>>>>>>>>> embedded jpg, but I am actually looking at the RAW file.
>>>>>>>>>> Want to try: Put the lighttable window to 100% and see the difference
>>>>>>>>>> at
>>>>>>>>>> the
>>>>>>>>>> size of the slider at either settings.
>>>>>>>>>> So it looks the message not being updated according the changed
>>>>>>>>>> settings.
>>>>>>>>>> Rinus
>>>>>>>>>>
>>>>>>>>>> Op 30-09-11 14:31, sleepless schreef:
>>>>>>>>>>>
>>>>>>>>>>> Have you tried to set Settings->Configure Digikam->lighttable->load
>>>>>>>>>>> full
>>>>>>>>>>> sized image enabled?
>>>>>>>>>>> Makes the difference on dng anyway.
>>>>>>>>>>> Rinus
>>>>>>>>>>> Op 30-09-11 13:24, Gilles Caulier schreef:
>>>>>>>>>>>>
>>>>>>>>>>>> core application, through libkdcraw which embed libraw.
>>>>>>>>>>>>
>>>>>>>>>>>> Gilles Caulier
>>>>>>>>>>>>
>>>>>>>>>>>> 2011/9/30 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>
>>>>>>>>>>>>> Is it the core application or kipi-plugins that handles this?
>>>>>>>>>>>>>
>>>>>>>>>>>>> /Anders
>>>>>>>>>>>>>
>>>>>>>>>>>>> 2011/9/30 Gilles Caulier<caulier.gilles at gmail.com>:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> No, 'sit the same one...
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Gilles Caulier
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> 2011/9/30 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I seem to have libraw 0.13.5. Should I use something newer?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /Anders
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> 2011/9/30 Gilles Caulier<caulier.gilles at gmail.com>:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> I think it depand of libraw to compute Raw half size preview.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> I use all code from git master.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Gilles Caulier
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> 2011/9/30 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Can I have done something wrong with my build? What would
>>>>>>>>>>>>>>>>> trigger
>>>>>>>>>>>>>>>>> this
>>>>>>>>>>>>>>>>> behaviour?
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Can't remember if it started with 2.0 or 2.1.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> /Anders
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Den 30 sep 2011 12:04 skrev "Gilles
>>>>>>>>>>>>>>>>> Caulier"<caulier.gilles at gmail.com>:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> It'not reproducible here. i can load CR2 half size Raw preview,
>>>>>>>>>>>>>>>>>> instead Embeded JPEG
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Gilles Caulier
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> 2011/9/30 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> I have tested with a new profile but it gives me the same
>>>>>>>>>>>>>>>>>>> result,
>>>>>>>>>>>>>>>>>>> only
>>>>>>>>>>>>>>>>>>> preview of embedded jpg.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> /Anders
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> 2011/9/29 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> "Emebeded preview loads full-sized images" enabled or not
>>>>>>>>>>>>>>>>>>>> gives
>>>>>>>>>>>>>>>>>>>> the same
>>>>>>>>>>>>>>>>>>>> result.
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> /Anders
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> 2011/9/29 Gilles Caulier<caulier.gilles at gmail.com>:
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Look in config dialog, in Album-View section, Preview
>>>>>>>>>>>>>>>>>>>>> Options.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Gilles Caulier
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> 2011/9/29 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> (And now I will finish the mail before I send it......)
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> jpg images says: Full Size Preview
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> My setup:
>>>>>>>>>>>>>>>>>>>>>> digiKam 2.1.1 (built by me)
>>>>>>>>>>>>>>>>>>>>>> kipi-plugins 2.1.1 (built by me)
>>>>>>>>>>>>>>>>>>>>>> openSuse 11.4
>>>>>>>>>>>>>>>>>>>>>> KDE 4.7.1
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> /Anders
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> 2011/9/29 Anders Stedtlund<falolaf at gmail.com>:
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> I'm now running digiKam 2.1.1 and kipi-plugins 2.1.1.
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Some time ago in an older version of digiKam, I was able
>>>>>>>>>>>>>>>>>>>>>>> to
>>>>>>>>>>>>>>>>>>>>>>> use "half
>>>>>>>>>>>>>>>>>>>>>>> size raw preview". Now this seems not to be possible.
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Was this a change of puspose?
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> jpg images says:
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> _______________________________________________
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>>>>>>>>>>>>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>>>>>> Digikam-users mailing list
>>>>>>>>>>>>>>>>>>>>> Digikam-users at kde.org
>>>>>>>>>>>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>>>> Digikam-users mailing list
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>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>>> Digikam-users mailing list
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>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>> Digikam-users mailing list
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>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>> Digikam-users mailing list
>>>>>>>>>>>>>>>> Digikam-users at kde.org
>>>>>>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> _______________________________________________
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>>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> Digikam-users mailing list
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>>>>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>>>>
>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>> Digikam-users mailing list
>>>>>>>>>>>>> Digikam-users at kde.org
>>>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>>>
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> Digikam-users mailing list
>>>>>>>>>>>> Digikam-users at kde.org
>>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> Digikam-users mailing list
>>>>>>>>>>> Digikam-users at kde.org
>>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Digikam-users mailing list
>>>>>>>>>> Digikam-users at kde.org
>>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Digikam-users mailing list
>>>>>>>>> Digikam-users at kde.org
>>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Digikam-users mailing list
>>>>>>>> Digikam-users at kde.org
>>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
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>>>>>
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