Re: [darktable-user] exporting jpegs: 'quality %'

[Patrick Shanahan]

* darkta...@911networks.com  [12-17-16 20:15]:
> On Sat, 17 Dec 2016 18:37:14 -0500
> Patrick Shanahan  wrote:
> 
> >And WHAT is the actual meaning/value of "1 to 12"?  w/o that
> >knowledge, *any* answer is mere supposition.  bighter than the moon
> >but dimmer than the sun.
> 
> "I", aka me, don't know what is the meaning of 1 to 12. No idea why
> Adobe did it that way.
> 
> I was just asking if anybody had an equivalency table. I didn't mean
> to start a rebellion against the empire...

not a "rebellion", but for most here, photoshop is an unknown, not used,
so you are asking for knowledge in the wrong forum.  Present the values or
meaning of "1 to 12" in photoshop and I am sure that you can get answers
to your question.


-- 
(paka)Patrick Shanahan   Plainfield, Indiana, USA  @ptilopteri
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Re: [darktable-user] exporting jpegs: 'quality %'

[Pascal Obry]

Le samedi 17 décembre 2016 à 10:09 -0800, darkta...@911networks.com a
écrit :
> I've been asked to do value 10 and 6. What would be the equivalent in
> DT?

For 10: (10 / 12) * 100  => 83%
For  6: ( 6 / 12) * 100  => 50%

If the Photoshop values ranging from 1 to 12 are not linear across the
quality percent then you should ask what Adobe means with those values
:)

Another way to check that is to export with 83% and 50% and check the
final image size compared to the 10, 6 export from Photoshop.

-- 
  Pascal Obry /  Magny Les Hameaux (78)

  The best way to travel is by means of imagination

  http://www.obry.net

  gpg --keyserver keys.gnupg.net --recv-key F949BD3B

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Re: [darktable-user] exporting jpegs: 'quality %'

[Patrick Shanahan]

* darkta...@911networks.com  [12-17-16 14:11]:
> On Sat, 17 Dec 2016 13:54:52 -0500
> Patrick Shanahan  wrote:
> 
> >what %'s do the values 10 and 6 represent?  one w/o photoshop has no
> >knowledge.  are the other "steps (1 to 12)" relevant to your request?
> >
> >one would guess "quality %" would relate to a percentage of 256,
> >but ... -- 
> 
> In photoshop:
> 
> https://helpx.adobe.com/photoshop/how-to/save-as-jpeg.html
> 
> step 4 of 4 
> 
> The values of 'Quality' range from 1 to 12

And WHAT is the actual meaning/value of "1 to 12"?  w/o that knowledge,
*any* answer is mere supposition.  bighter than the moon but dimmer than
the sun.

-- 
(paka)Patrick Shanahan   Plainfield, Indiana, USA  @ptilopteri
http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri
Photos: http://wahoo.no-ip.org/gallery2  Registered Linux User #207535  
  
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Re: [darktable-user] Issue importing pictures from D610

[Jean-Luc CECCOLI]

I agree : transfering data by directly connecting the camera to the computer 
may be source of problems.

I'm using a card reader, maybe should you try this instead.

And *don't* use RPD pre-alpha, as not all features are currently implemented.

Current works fine for me (not really, in fact, as the photso are not erased 
after transfer, but it might be my fault).


J.-Luc

 

 

 

 

> Message du 17/12/16 11:41
> De : "Richard Hobday" 
> A : darktable-user@lists.darktable.org
> Copie à : 
> Objet : Re: [darktable-user] Issue importing pictures from D610
> 
> You may well have already considered these options, but ...
> 
> Check whether the camera's USB connection is set to MTP / PTP or Storage.
> 
> One or more of these will be correct for your connection to the 
> workstation, only one of them will work with RPD or Darktable ...
> 
> Check to see if the Filing system has already mounted the camera as a 
> device - it will appear in File Manager if this is so.
> Unmount it and try again.
> 
> R.
> 
> 
> On 17/12/16 09:57, Adrien le Maire wrote:
> > Hi ,
> >
> > I use Rapid Photo Downloader 0.9.0a6 installed via python & tar.gz
> > it is stuck at "probing device" and gives me the following error :
> > ERROR An unhandled exception occurred
> > ERROR Traceback (most recent call last):
> > File 
> > "/home/alemaire/.local/lib/python3.5/site-packages/raphodo/rapid.py", 
> > line 3559, in scanMessageReceived
> > data = pickle.loads(pickled_data) # type: ScanResults
> > EOFError: Ran out of input
> >
> > I also installed Rapid Photo Downloader via 'dnf install 
> > rapid-photo-downloader' on my Fedora 25 up to date. And that version 
> > (0.4.11) works for the internal filesystem and directories but for my 
> > D610 it stay on 'scanning ...' without the activity led on the camera 
> > showing any activity.
> >
> > Therefor, it seems that darktable import option is more mature but the 
> > variable system relying on EXIF data doesn't work.
> >
> > Regards,
> >
> > Adrien
> >
> > On Sat, Dec 17, 2016 at 12:39 AM Jean-Luc CECCOLI 
> > > wrote:
> >
> > Rapid Photo Downloader buggy ? Which version did you try ?
> >
> > I didn't notice that after having been using stable versions for
> > more than three years !
> >
> > Rgrds,
> >
> > J.-Luc
> >
> > > Message du 16/12/16 11:34
> > > De : "Adrien le Maire"  > >
> > > A : "Roman Lebedev"  > >
> > > Copie à : "darktable-user"
> >  > >
> > > Objet : Re: [darktable-user] Issue importing pictures from D610
> >
> >
> > >
> > >
> > AFAIK, it's documented and documentation is related to v 2.0
> > > http://www.darktable.org/usermanual/ch08s03.html.php
> > >
> >
> > >
> > Thanks Dave for Rapid Photo Downloader but seems really buggy,
> > can't get it to see my pics.
> > >
> >
> > >
> > On Fri, Dec 16, 2016 at 11:02 AM Roman Lebedev
> > > wrote:
> > >
> >
> > On Fri, Dec 16, 2016 at 12:43 PM, Adrien le Maire
> > > wrote:
> > > Hello,
> > >
> > > I want to import pictures from my camera in the
> > following sub directory
> > > naming pattern : $(EXIF_YEAR)/$(EXIF_MONTH)/$(EXIF_DAY)
> > but it got
> > > interpreted as $(YEAR)/$(MONTH)/$(DAY) ; is it linked to
> > my camera ? is
> > > there something I can do about it ?
> > Not a bug.
> > Such feature, i believe, was added, and is avaliable in
> > 2.2.0rc
> >
> > > Thanks,
> > > Adrien le Maire
> > Roman.
> >
> > >
> > 
> > > darktable user mailing list to unsubscribe send a mail to
> > > darktable-user+unsubscr...@lists.darktable.org
> > 
> >
> >
> > >
> > 
> > darktable user mailing list to unsubscribe send a mail to
> > darktable-user+unsubscr...@lists.darktable.org
> > 
> > > 
> >
> >
> > 
> > darktable user mailing list to unsubscribe send a mail to
> > darktable-user+unsubscr...@lists.darktable.org
> > 
> >
> >
> > 
> >  
> > darktable user mailing list to unsubscribe send a mail to 
> > darktable-user+unsubscr...@lists.darktable.org
> 
> -- 
> http://lukecarville.jalbum.net
> https://facebook.com/rlc.hobday
> 
> 
> darktable user mailing list
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> 
>

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Re: [darktable-user] exporting jpegs: 'quality %'

[Marc Cousin]

On 17/12/2016 20:10, darkta...@911networks.com wrote:
> On Sat, 17 Dec 2016 13:54:52 -0500
> Patrick Shanahan  wrote:
>
>> what %'s do the values 10 and 6 represent?  one w/o photoshop has no
>> knowledge.  are the other "steps (1 to 12)" relevant to your request?
>>
>> one would guess "quality %" would relate to a percentage of 256,
>> but ... -- 
> In photoshop:
>
> https://helpx.adobe.com/photoshop/how-to/save-as-jpeg.html
>
> step 4 of 4 
>
> The values of 'Quality' range from 1 to 12
>
Well, almost anything but lightroom uses percentage for jpeg export…

This article seems to give pointers:
https://photographylife.com/jpeg-compression-levels-in-photoshop-and-lightroom


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Re: [darktable-user] exporting jpegs: 'quality %'

[darktable]

On Sat, 17 Dec 2016 13:54:52 -0500
Patrick Shanahan  wrote:

>what %'s do the values 10 and 6 represent?  one w/o photoshop has no
>knowledge.  are the other "steps (1 to 12)" relevant to your request?
>
>one would guess "quality %" would relate to a percentage of 256,
>but ... -- 

In photoshop:

https://helpx.adobe.com/photoshop/how-to/save-as-jpeg.html

step 4 of 4 

The values of 'Quality' range from 1 to 12

-- 
sknahT

vyS

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Re: [darktable-user] exporting jpegs: 'quality %'

[Patrick Shanahan]

* darkta...@911networks.com  [12-17-16 13:10]:
> Hi,
> 
> DT 2.0.7 on arch.
> 
> When exporting:  format jpeg(8bit). 
> 
> Is there somewhere a table that match the 'quality %' to the Photoshop
> steps (1 to 12)?
> 
> I've been asked to do value 10 and 6. What would be the equivalent in
> DT?

what %'s do the values 10 and 6 represent?  one w/o photoshop has no
knowledge.  are the other "steps (1 to 12)" relevant to your request?

one would guess "quality %" would relate to a percentage of 256, but ...
-- 
(paka)Patrick Shanahan   Plainfield, Indiana, USA  @ptilopteri
http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri
Photos: http://wahoo.no-ip.org/gallery2  Registered Linux User #207535  
  
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[darktable-user] exporting jpegs: 'quality %'

[darktable]

Hi,

DT 2.0.7 on arch.

When exporting:  format jpeg(8bit). 

Is there somewhere a table that match the 'quality %' to the Photoshop
steps (1 to 12)?

I've been asked to do value 10 and 6. What would be the equivalent in
DT?

-- 
sknahT

vyS

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Re: [darktable-user] Issue importing pictures from D610

[Patrick Shanahan]

* Adrien le Maire  [12-17-16 04:58]:
> Hi ,
> 
> I use Rapid Photo Downloader 0.9.0a6 installed via python & tar.gz
> it is stuck at "probing device" and gives me the following error :
> ERRORAn unhandled exception occurred
> ERRORTraceback (most recent call last):
>   File
> "/home/alemaire/.local/lib/python3.5/site-packages/raphodo/rapid.py", line
> 3559, in scanMessageReceived
> data = pickle.loads(pickled_data)  # type: ScanResults
> EOFError: Ran out of input
> 
> I also installed Rapid Photo Downloader via 'dnf install
> rapid-photo-downloader' on my Fedora 25 up to date. And that version
> (0.4.11) works for the internal filesystem and directories but for my D610
> it stay on 'scanning ...' without the activity led on the camera showing
> any activity.
> 
> Therefor, it seems that darktable import option is more mature but the
> variable system relying on EXIF data doesn't work.
> 
> Regards,
> 
> Adrien
> 
> On Sat, Dec 17, 2016 at 12:39 AM Jean-Luc CECCOLI <
> jean-luc.cecc...@wanadoo.fr> wrote:
> 
> > Rapid Photo Downloader buggy ? Which version did you try ?
> >
> > I didn't notice that after having been using stable versions for more than
> > three years !
> >
> >
> >
> > Rgrds,
> >
> >
> >
> > J.-Luc
> >
> >
> >
> > > Message du 16/12/16 11:34
> > > De : "Adrien le Maire" 
> > > A : "Roman Lebedev" 
> > > Copie à : "darktable-user" 
> > > Objet : Re: [darktable-user] Issue importing pictures from D610
> >
> >
> > >
> > >
> > AFAIK, it's documented and documentation is related to v 2.0
> > > http://www.darktable.org/usermanual/ch08s03.html.php
> > >
> >
> > >
> > Thanks Dave for Rapid Photo Downloader but seems really buggy, can't get
> > it to see my pics.
> > >
> >
> > >
> > On Fri, Dec 16, 2016 at 11:02 AM Roman Lebedev 
> > wrote:
> > >
> >
> > On Fri, Dec 16, 2016 at 12:43 PM, Adrien le Maire 
> > wrote:
> > > Hello,
> > >
> > > I want to import pictures from my camera in the following sub directory
> > > naming pattern : $(EXIF_YEAR)/$(EXIF_MONTH)/$(EXIF_DAY) but it got
> > > interpreted as $(YEAR)/$(MONTH)/$(DAY) ; is it linked to my camera ? is
> > > there something I can do about it ?
> > Not a bug.
> > Such feature, i believe, was added, and is avaliable in 2.2.0rc
> >
> > > Thanks,
> > > Adrien le Maire
> > Roman.
> >
> > >
> > 
> > > darktable user mailing list to unsubscribe send a mail to
> > > darktable-user+unsubscr...@lists.darktable.org
> >
> >
> > >
> > 
> > darktable user mailing list to unsubscribe send a mail to
> > darktable-user+unsubscr...@lists.darktable.org
> > >
> >
> >
> > 
> > darktable user mailing list to unsubscribe send a mail to
> > darktable-user+unsubscr...@lists.darktable.org
> >
> 
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
> 


Then the EXIF information in your photos is not standard or the version of
rfd is broken or not correctly installed.

-- 
(paka)Patrick Shanahan   Plainfield, Indiana, USA  @ptilopteri
http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri
Photos: http://wahoo.no-ip.org/gallery2  Registered Linux User #207535  
  
Photos: http://wahoo.no-ip.org/piwigo@ http://linuxcounter.net

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Re: [darktable-user] darktable 2.2.0rc3 released

[Tobias Ellinghaus]

Am Freitag, 16. Dezember 2016, 12:27:38 CET schrieb François Patte:
> Le 12/12/2016 11:25, Tobias Ellinghaus a écrit :
> > we're proud to announce the fourth release candidate of darktable 2.2.0,
> > with some fixes over the previous release candidate.
> > 
> > please test this thoroughly to help us have a nice release later this
> > year.
> > and if you are a translator, you have not much time left to update your
> > work!
> I downloaded it and compiled it on fedora 21 and 23.
> 
> One problem: it crashes if I try to import photos from Nikon D300 using
> PTP protocol. (No problem if the usb camera setting is "mass storage",
> but in that case, it is easier to download the photos on the computer
> directly, using cp, and import from a folder into darktable).

Do you have a backtrace? Maybe darktable created one in /tmp/.

> One question (or suggestion): is there a way to split the darktable
> window in order to have the darkroom alone and the command panels apart.
> This can be done with Gimp and is very convenient when you use two
> screen on you computer.

That was requested a few times and some day it will surely come. But currently 
no one is working on it.

> Thank you.

Tobias

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Re: [darktable-user] Issue importing pictures from D610

[Adrien le Maire]

Hi ,

I use Rapid Photo Downloader 0.9.0a6 installed via python & tar.gz
it is stuck at "probing device" and gives me the following error :
ERRORAn unhandled exception occurred
ERRORTraceback (most recent call last):
  File
"/home/alemaire/.local/lib/python3.5/site-packages/raphodo/rapid.py", line
3559, in scanMessageReceived
data = pickle.loads(pickled_data)  # type: ScanResults
EOFError: Ran out of input

I also installed Rapid Photo Downloader via 'dnf install
rapid-photo-downloader' on my Fedora 25 up to date. And that version
(0.4.11) works for the internal filesystem and directories but for my D610
it stay on 'scanning ...' without the activity led on the camera showing
any activity.

Therefor, it seems that darktable import option is more mature but the
variable system relying on EXIF data doesn't work.

Regards,

Adrien

On Sat, Dec 17, 2016 at 12:39 AM Jean-Luc CECCOLI <
jean-luc.cecc...@wanadoo.fr> wrote:

> Rapid Photo Downloader buggy ? Which version did you try ?
>
> I didn't notice that after having been using stable versions for more than
> three years !
>
>
>
> Rgrds,
>
>
>
> J.-Luc
>
>
>
> > Message du 16/12/16 11:34
> > De : "Adrien le Maire" 
> > A : "Roman Lebedev" 
> > Copie à : "darktable-user" 
> > Objet : Re: [darktable-user] Issue importing pictures from D610
>
>
> >
> >
> AFAIK, it's documented and documentation is related to v 2.0
> > http://www.darktable.org/usermanual/ch08s03.html.php
> >
>
> >
> Thanks Dave for Rapid Photo Downloader but seems really buggy, can't get
> it to see my pics.
> >
>
> >
> On Fri, Dec 16, 2016 at 11:02 AM Roman Lebedev 
> wrote:
> >
>
> On Fri, Dec 16, 2016 at 12:43 PM, Adrien le Maire 
> wrote:
> > Hello,
> >
> > I want to import pictures from my camera in the following sub directory
> > naming pattern : $(EXIF_YEAR)/$(EXIF_MONTH)/$(EXIF_DAY) but it got
> > interpreted as $(YEAR)/$(MONTH)/$(DAY) ; is it linked to my camera ? is
> > there something I can do about it ?
> Not a bug.
> Such feature, i believe, was added, and is avaliable in 2.2.0rc
>
> > Thanks,
> > Adrien le Maire
> Roman.
>
> >
> 
> > darktable user mailing list to unsubscribe send a mail to
> > darktable-user+unsubscr...@lists.darktable.org
>
>
> >
> 
> darktable user mailing list to unsubscribe send a mail to
> darktable-user+unsubscr...@lists.darktable.org
> >
>
>
> 
> darktable user mailing list to unsubscribe send a mail to
> darktable-user+unsubscr...@lists.darktable.org
>


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