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DATE 2018-08-01

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Key: archive Value: 2018-08-01

Key: id Value: 547328

MESSAGE
DATE 2018-08-01
FROM Ruben Safir
SUBJECT Re: [Hangout - NYLXS] [conspire] PNG troubles
From hangout-bounces-at-nylxs.com Wed Aug 1 11:28:38 2018
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From: Ruben Safir
To: Rick Moen
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Subject: Re: [Hangout - NYLXS] [conspire] PNG troubles
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On Tue, Jul 31, 2018 at 10:21:42PM -0700, Rick Moen wrote:
> Quoting Ruben Safir (ruben-at-mrbrklyn.com):
>
> > It seems that the gimp mangles PNG files again
>
> Were you going to relate the rest of this? As stated, this claim is
> impossible to examine or say anything but 'oh', about. So: Oh.
> OTOH, if you just wanted an expression of sympathy without people having
> any understanding of what you're talking about, please consider it granted!
>
>

There has been a history that the PNG libraries have broken image
rendering of the previous libraries. Ten years ago or so this happened
because a bug was developed in the Free Software libpng and when they
closed the bug, a great portion of my images stopped rendering and
became useless, especially the early NYLXS and Linux World Expo images,
and 911 images I had converted to png format.

Now this seems to have happened again. the GIMP and libpng can't render
images, such as the one I posted, with the latest libraries. So now
a large number of my images that I took in 2007 of my family and
Brooklyn as it was transforming has stopped rendering. I a few months
they won't work anywhere.

They had aa couple of tools called optpng and few others that were
suppoded to fix these broken images. Those tools failed to work on a
large number of the images.

I then proceded to attempt to right a program to fix them myself in C++.
I never really finished it. It was an assignment for school where I was
trying to use the new C++ threads. I had trouble getting the shared
memory to be accessable to multiple threads, but I did get low access to
the files.
... but that is an aside.

There continues to be a core problem with the PNG format. You can't
depend on it for archival purposes. What works today might well not
work tomorrow, and that is a huge problem for one of the core free
software projects. Picutres need to render now, and in a 100 years from
now, or they are worthless.

If you look at http://images.mrbrklyn.com

You will see a bunch of blank images. Every one of those images are
being misrendered by the software. That gallery uses imagmaik to
convert them on the fly to multiple sizes and thumnails. I opened the
original images in the gimp, and they likewise don't render.

If you look at them in firefox though, they work. But that is likely
just a matter of time before the new libaries cascade into the ecosystem

For example:

http://images.mrbrklyn.com/brooklyn/ornimental_building_kent_st_2006_00557.png?width=640

This broken image

http://images.mrbrklyn.com/brooklyn/.cache/640x480-ornimental_building_kent_st_2006_00557.png

is rendered from this original image

http://www.mrbrklyn.com/brooklyn/images/ornimental_building_kent_st_2006_00557.png

and the original shows up in a browser

But if you try to open it up in the gimp, it doesn't render. Nor does
it render in viewnoir or xv. Some core and common library has to be
broken. When the apache software tries to rescale it on the fly, it
can't renber it either. And this is what happened last time.

Over time these images will become completely useless.

You can only conclude at this jucnture that PNG files are wholely
undependable and not a usable format.



> _______________________________________________
> conspire mailing list
> conspire-at-linuxmafia.com
> http://linuxmafia.com/mailman/listinfo/conspire

--
So many immigrant groups have swept through our town
that Brooklyn, like Atlantis, reaches mythological
proportions in the mind of the world - RI Safir 1998
http://www.mrbrklyn.com

DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
http://www.nylxs.com - Leadership Development in Free Software
http://www2.mrbrklyn.com/resources - Unpublished Archive
http://www.coinhangout.com - coins!
http://www.brooklyn-living.com

Being so tracked is for FARM ANIMALS and and extermination camps,
but incompatible with living as a free human being. -RI Safir 2013

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  1. 2018-08-01 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] [ruben-at-www2.mrbrklyn.com: Why is it that png
  2. 2018-08-01 Ruben Safir <ruben-at-mrbrklyn.com> Re: [Hangout - NYLXS] [conspire] PNG troubles
  3. 2018-08-01 From: "Free Software Foundation" <info-at-fsf.org> Subject: [Hangout - NYLXS] Free Software Supporter Issue 124, August 2018
  4. 2018-08-01 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Firefox rebellion
  5. 2018-08-01 Cosmin Truta <ctruta-at-gmail.com> Re: [Hangout - NYLXS] [png-mng-implement] Why is it that png files
  6. 2018-08-02 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] In casew your interested - fish is very hot
  7. 2018-08-02 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Stop the Hollywood's greedy grad of copyrighted
  8. 2018-08-02 ruben safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Fwd: Re: Systemd is the best reason to run
  9. 2018-08-02 ruben safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Fwd: Re: Slackware's future
  10. 2018-08-02 ruben safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Fwd: Slackware's future
  11. 2018-08-03 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Things on the internet worth preserving
  12. 2018-08-06 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Fwd: Re: [png-mng-implement] Why is it that png
  13. 2018-08-06 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] [Perlweekly] #367 - 7 years, 6 editors, 367 issues,
  14. 2018-08-06 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] VIM articles
  15. 2018-08-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [Hangout - NYLXS] Researcher and the Stack Exchange
  16. 2018-08-08 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] The return of the Non-systemd user - use the
  17. 2018-08-06 Congresswoman Yvette Clarke <info-at-ny09yc.congressnewsletter.net> Subject: [Hangout - NYLXS] May I share some news with you?
  18. 2018-08-10 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] this weekend until Sunday only - Yellow
  19. 2018-08-06 From: "Free Software Foundation" <info-at-fsf.org> Subject: [Hangout - NYLXS] Respects Your Freedom certification program
  20. 2018-08-12 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] 60 minutes is investigating the Subway and they
  21. 2018-08-14 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] AI in healthcare meeting
  22. 2018-08-14 Ruben Safir <mrbrklyn-at-panix.com> Subject: [Hangout - NYLXS] Admin work for NYC
  23. 2018-08-13 Gabor Szabo <gabor-at-szabgab.com> Subject: [Hangout - NYLXS] [Perlweekly] #368 - The Perl Conference in Glasgow
  24. 2018-08-14 From: "IEEE The Institute Alert" <reply-at-media.ieee.org> Subject: [Hangout - NYLXS] Parents of Generation Alpha Say They Trust AI to
  25. 2018-08-14 Ruben Safir <mrbrklyn-at-panix.com> Re: [Hangout - NYLXS] Linux engineer
  26. 2018-08-16 From: "IEEE Spectrum Tech Alert" <reply-at-media.ieee.org> Subject: [Hangout - NYLXS] Engineers Say "No Thanks" to Silicon Valley
  27. 2018-08-18 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] you won't believe your eyes
  28. 2018-08-19 From: "Ruben.Safir" <ruben.safir-at-my.liu.edu> Subject: [Hangout - NYLXS] Socialism succeeds again
  29. 2018-08-20 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Living history
  30. 2018-08-20 Gabor Szabo <gabor-at-szabgab.com> Subject: [Hangout - NYLXS] [Perlweekly] #369 - Twiki - LCplot - Perl Conf
  31. 2018-08-20 From: "Deutsch, Chaim" <CDeutsch-at-council.nyc.gov> Subject: [Hangout - NYLXS] THE DEUTSCH REPORT: News From Councilmember Chaim
  32. 2018-08-20 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Nothing like a kill switch
  33. 2018-08-23 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] encryption fails to protect Cohen - and why this
  34. 2018-08-26 Gabor Szabo <gabor-at-szabgab.com> Subject: [Hangout - NYLXS] [Perlweekly] #370 - TPCiG - Sweet Memory
  35. 2018-08-23 From: "American Museum of Natural History" <learn-at-amnh.org> Subject: [Hangout - NYLXS] There's Still Time to Register for Fall Session 1!
  36. 2018-08-23 From: "IEEE Spectrum Tech Alert" <reply-at-media.ieee.org> Subject: [Hangout - NYLXS] A Twist in Graphene Could Make for Tunable
  37. 2018-08-27 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Microkernel and Security
  38. 2018-08-27 Ruben Safir <mrbrklyn-at-panix.com> Re: [Hangout - NYLXS] Microkernel and Security
  39. 2018-08-27 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Selling your privacy - Federal lobbying
  40. 2018-08-27 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] Look the Timesfound some real news to publish --
  41. 2018-08-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [Hangout - NYLXS] Key NYC Truck route might collapse - the BQE
  42. 2018-08-27 Ruben Safir <ruben-at-mrbrklyn.com> Subject: [Hangout - NYLXS] NYC to become a tolled city for the MTA
  43. 2018-08-27 Ruben Safir <ruben.safir-at-my.liu.edu> Subject: [Hangout - NYLXS] Fwd: Introduction to Python for deep-learning --
  44. 2018-08-28 From: "Donald Robertson, III, FSF" <licensing-at-fsf.org> Subject: [Hangout - NYLXS] Sign up for the FSF's next seminar on GPL
  45. 2018-08-30 IEEE Engineering in Medicine and Biology Society <noreply-at-embs.org> Subject: [Hangout - NYLXS] IEEE Micro and Nanotechnology in Medicine

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