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

Gilles Caulier caulier.gilles at gmail.com
Sun Oct 2 13:29:36 BST 2011 

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:
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>>>>>> 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
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> 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
>>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> 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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>>>
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>

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