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

Anders Stedtlund falolaf at gmail.com
Sun Oct 2 13:16:59 BST 2011 

Do I need to build with debug?

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
>>>>>>>>>>>>>>>>>>>
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>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> _______________________________________________
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>>>>>>>>>>>>>>>>
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>>>>>>>>>>>>>>
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>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
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>>>>>>>>>>
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>>>>>>>>>
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