Re: [Gimp-developer] Problems with JPG?!

[Robert Krawitz]

On Sun, 31 Jan 2016 22:22:55 +, Kevin Payne wrote:
> Yes it's almost certainly the bug that won't get fixed raising it's ugly head 
> again: https://bugzilla.gnome.org/show_bug.cgi?id=723153

Manufacturers simply aren't going to fix their firmware, particularly
for older devices (read: are already on the market).  And it's
possible that a firmware fix wouldn't even be enough, since printers
would need more memory to buffer the entire image rather than just
reconstituting it one row of blocks at a time.  There's also the added
testing expense.  Phones and cameras don't generate progressive JPEGs,
so printer, TV, etc. manufacturers don't have any real incentive to
support them.  The manufacturers probably don't even write their own
firmware; they contract it out.

Progressive JPEGs are nice for displaying big images in browsers over
slow links (which my 1500/368 DSL qualifies as).  I admit that they're
easier for me in that context.  But given the confusion this is
causing, and that it requires non-trivial knowledge (and tools) for
people to fix after the fact, I'd argue that this should be revisited.

> 
> From: gimp-developer-list <gimp-developer-list-boun...@gnome.org> on behalf 
> of Michael Schumacher <schum...@gmx.de>
> Sent: 31 January 2016 20:31
> To: gimp-developer-list@gnome.org
> Subject: Re: [Gimp-developer] Problems with JPG?!
>
> Am 31.01.2016 um 16:29 schrieb Stefan Rohde:
>
>> I can not display images that I have prepared and saved with GIMP 2.8.14
>> (under Windows 10) in jpg-format on my TV or via a digital box (WD TV).
>
>> Do you have an idea or information !?
>
> It's most likely the Progressive option in the advanced part of the JPEG
> export dialog.

-- 
Robert Krawitz <r...@alum.mit.edu>

***  MIT Engineers   A Proud Tradition   http://mitathletics.com  ***
Member of the League for Programming Freedom  --  http://ProgFree.org
Project lead for Gutenprint   --http://gimp-print.sourceforge.net

"Linux doesn't dictate how I work, I dictate how Linux works."
--Eric Crampton
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list

Re: [Gimp-developer] Problems with JPG?!

[Mukund Sivaraman]

On Sun, Jan 31, 2016 at 10:44:17PM +0530, Mukund Sivaraman wrote:
> Hi Stefan
> 
> On Sun, Jan 31, 2016 at 04:29:43PM +0100, Stefan Rohde wrote:
> > Dear GIMP-Team,
> > I can not display images that I have prepared and saved with GIMP 2.8.14
> > (under Windows 10) in jpg-format on my TV or via a digital box (WD TV). On
> > my PC its no problem!
> > The Thumbnailes can be seen but the images can not be read!
> > I have also tried several setting for the jpg-saving.
> > 
> > Other images I prepared with former versions are working well!
> > 
> > Do you have an idea or information !?
> 
> Can you create a GIMP bug ticket on bugzilla.gimp.org and attach a
> sample JPEG image that is broken?

Sorry that's https://bugzilla.gnome.org/

Mukund


signature.asc
Description: PGP signature
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list

Re: [Gimp-developer] Problems with JPG?!

[Kevin Payne]

Yes it's almost certainly the bug that won't get fixed raising it's ugly head 
again: https://bugzilla.gnome.org/show_bug.cgi?id=723153

Kevin

From: gimp-developer-list <gimp-developer-list-boun...@gnome.org> on behalf of 
Michael Schumacher <schum...@gmx.de>
Sent: 31 January 2016 20:31
To: gimp-developer-list@gnome.org
Subject: Re: [Gimp-developer] Problems with JPG?!

Am 31.01.2016 um 16:29 schrieb Stefan Rohde:

> I can not display images that I have prepared and saved with GIMP 2.8.14
> (under Windows 10) in jpg-format on my TV or via a digital box (WD TV).

> Do you have an idea or information !?

It's most likely the Progressive option in the advanced part of the JPEG
export dialog.


--
Regards,
Michael
GPG: 96A8 B38A 728A 577D 724D 60E5 F855 53EC B36D 4CDD
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list

Re: [Gimp-developer] Problems with JPG?!

[Michael Schumacher]

Am 31.01.2016 um 16:29 schrieb Stefan Rohde:

> I can not display images that I have prepared and saved with GIMP 2.8.14
> (under Windows 10) in jpg-format on my TV or via a digital box (WD TV).

> Do you have an idea or information !?

It's most likely the Progressive option in the advanced part of the JPEG
export dialog.


-- 
Regards,
Michael
GPG: 96A8 B38A 728A 577D 724D 60E5 F855 53EC B36D 4CDD
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list

Re: [Gimp-developer] Problems with JPG?!

[Sven Claussner]

On  31.1.2016 at 4:29 PM Stefan Rohde wrote:

I can not display images that I have prepared and saved with GIMP 2.8.14
(under Windows 10) in jpg-format on my TV or via a digital box (WD TV).
On my PC its no problem!
The Thumbnailes can be seen but the images can not be read!
I have also tried several setting for the jpg-saving.

Other images I prepared with former versions are working well!

Do you have an idea or information !?




Hi Stefan,

did you also try various settings of the subsampling
(in the German dialog box: Zwischenschritte, although
'Farbunterabtastung' is the proper translation here)?
If you report a bug, please make sure to use version 2.8.16 which
is the latest.

Greetings

Sven

___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list

Re: [Gimp-developer] Problems with JPG?!

[Mukund Sivaraman]

Hi Stefan

On Sun, Jan 31, 2016 at 04:29:43PM +0100, Stefan Rohde wrote:
> Dear GIMP-Team,
> I can not display images that I have prepared and saved with GIMP 2.8.14
> (under Windows 10) in jpg-format on my TV or via a digital box (WD TV). On
> my PC its no problem!
> The Thumbnailes can be seen but the images can not be read!
> I have also tried several setting for the jpg-saving.
> 
> Other images I prepared with former versions are working well!
> 
> Do you have an idea or information !?

Can you create a GIMP bug ticket on bugzilla.gimp.org and attach a
sample JPEG image that is broken?

Mukund


signature.asc
Description: PGP signature
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list

Re: [Gimp-developer] Problems with JPG?!

[Shlomi Fish]

Hi Mr. Rohde,

please reply to all recipients.

On Sun, 31 Jan 2016 16:29:43 +0100
Stefan Rohde  wrote:

> Dear GIMP-Team,
> I can not display images that I have prepared and saved with GIMP 2.8.14 
> (under Windows 10) in jpg-format on my TV or via a digital box (WD TV). 
> On my PC its no problem!
> The Thumbnailes can be seen but the images can not be read!
> I have also tried several setting for the jpg-saving.
> 
> Other images I prepared with former versions are working well!
> 

Can you send us a sample image ? It is possible that your television implements
only a subset of the JPEG standard. To verify , can you let me know if the
following JPEG file that I first converted to PNG using ImageMagick and then
saved as JPEG From GIMP is fine:

* http://www.shlomifish.org/Files/files/images/chickpeas.xcf.bz2

* http://www.shlomifish.org/Files/files/images/chickpeas-from-xcf.png

* http://www.shlomifish.org/Files/files/images/chickpeas-from-xcf.jpg

The SHA-256 sums for them are:

cbb78ae42b96b2aa85ebce7ed6cc6e2378d13562b6076673df8edb57f6ad2f20
chickpeas-from-xcf.jpg

a4a5dd3512b0b89f476647e287a4f18359bc99af9f06776c6a933ae7c4e7fd8d
chickpeas-from-xcf.png

1f9b974716bda9f8374be083c044623bf3277e7f7fd3f95b56633b98354ccc20
chickpeas.xcf.bz2

Can you give an example of a JPEG file that your television views properly?

Regards,

Shlomi Fish

> Do you have an idea or information !?
> 
> Kind regards
> Stefan Rohde
> Germany
> ___
> gimp-developer-list mailing list
> List address:gimp-developer-list@gnome.org
> List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
> List archives:   https://mail.gnome.org/archives/gimp-developer-list



-- 
-
Shlomi Fish   http://www.shlomifish.org/
Humanity - Parody of Modern Life - http://shlom.in/humanity

When a FLOSS developer says they will work on something, he or she means
“maybe”.

Please reply to list if it's a mailing list post - http://shlom.in/reply .
___
gimp-developer-list mailing list
List address:gimp-developer-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
List archives:   https://mail.gnome.org/archives/gimp-developer-list