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JPG durability
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Nov 7, 2019 12:54:18   #
wweary
 
A friend submitted an otherwise desirable collection of jpg photos to a non-profit archive only to have them rejected because of issues with jpg: The archive said that each time a jpg photo is opened, data is lost, with the final result the disappearance of the file. So the archive accepts no jpg materials. I'd never heard this before, but wonder!

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Nov 7, 2019 12:59:20   #
Ysarex
 
wweary wrote:
A friend submitted an otherwise desirable collection of jpg photos to a non-profit archive only to have them rejected because of issues with jpg: The archive said that each time a jpg photo is opened, data is lost, with the final result the disappearance of the file. So the archive accepts no jpg materials. I'd never heard this before, but wonder!


Complete nonsense. The JPEG format is, as described in the documentation that defines it, an archive format. No data is lost when a JPEG is opened for viewing.

Joe

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Nov 7, 2019 12:59:24   #
JohnR Loc: Hobart, Tasmania, Australia
 
Whoever created the archive should take some lessons to learn about what he/she is doing.

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Nov 7, 2019 13:06:24   #
burkphoto Loc: High Point, NC
 
wweary wrote:
A friend submitted an otherwise desirable collection of jpg photos to a non-profit archive only to have them rejected because of issues with jpg: The archive said that each time a jpg photo is opened, data is lost, with the final result the disappearance of the file. So the archive accepts no jpg materials. I'd never heard this before, but wonder!


Someone is terribly misguided!

A JPEG does not change unless you SAVE it.

Files can be locked.

JPEGs can be converted to TIFFs for minimal loss editing.

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Nov 7, 2019 13:24:21   #
Longshadow Loc: Audubon, PA
 
burkphoto wrote:
Someone is terribly misguided!

A JPEG does not change unless you SAVE it.

Files can be locked.

JPEGs can be converted to TIFFs for minimal loss editing.



VIEWING has no affect on a JPEG file whatsoever.

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Nov 7, 2019 13:35:13   #
wweary
 
Many thanks. It made no sense to me! I'll pass this along.

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Nov 7, 2019 13:56:02   #
Bokehen
 
Based on your comment and with really know the host of this company, I get the impression "they" want the RAW images and in turn not give the photographer the rights or credit he or she deserves. I would avoid this scam.

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Nov 7, 2019 14:38:02   #
juan_uy Loc: Uruguay
 
This is even funny, imagine any JPG posted on any webpage..........it would be degrading with each visitor to a website, ending with no image after some visits :-D

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Nov 7, 2019 14:38:48   #
rehess Loc: South Bend, IN, USA
 
Bokehen wrote:
Based on your comment and with really know the host of this company, I get the impression "they" want the RAW images and in turn not give the photographer the rights or credit he or she deserves. I would avoid this scam.
I cannot believe that they want 'raw' files - by definition 'raw' is incomplete and waiting to be 'finished'.

More likely someone sold them a 'bill of goods' and they expect TIFF.

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Nov 7, 2019 15:07:39   #
Longshadow Loc: Audubon, PA
 
juan_uy wrote:
This is even funny, imagine any JPG posted on any webpage..........it would be degrading with each visitor to a website, ending with no image after some visits :-D



POUF!

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Nov 8, 2019 07:00:03   #
jerryc41 Loc: Catskill Mts of NY
 
I find it interesting that people running an archive don't know much about preservation and "wear." You don't wear out a picture bu looking at it.

It's editing and re-saving the picture that can cause a loss of quality. As an experiment, I opened, modified, and saved a JPEG picture over a hundred times. I didn't see any loss in quality.

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Nov 8, 2019 07:00:37   #
knoxworks Loc: Western Mass.
 
burkphoto wrote:
Someone is terribly misguided!

A JPEG does not change unless you SAVE it.

Files can be locked.

JPEGs can be converted to TIFFs for minimal loss editing.


Bill is right!

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Nov 8, 2019 07:19:10   #
LFingar Loc: Claverack, NY
 
burkphoto wrote:
Someone is terribly misguided!

A JPEG does not change unless you SAVE it.

Files can be locked.

JPEGs can be converted to TIFFs for minimal loss editing.


Don't be so quick to say no. There could be some force at work here we don't understand. Every time I look in the mirror, for example, I seem to have less hair! That archivist might be on to something!

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Nov 8, 2019 07:21:46   #
Bill_de Loc: US
 
wweary wrote:
A friend submitted an otherwise desirable collection of jpg photos to a non-profit archive only to have them rejected because of issues with jpg: The archive said that each time a jpg photo is opened, data is lost, with the final result the disappearance of the file. So the archive accepts no jpg materials. I'd never heard this before, but wonder!


It's true!
Sunday
Sunday...
Monday
Monday...
Tuesday
Tuesday...
Wednesday
Wednesday...
Thursday
Thursday...
Friday
Friday...
Saturday
Saturday...

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Nov 8, 2019 07:24:48   #
anotherview Loc: California
 
Thanks for simplifying the matter.
burkphoto wrote:
Someone is terribly misguided!

A JPEG does not change unless you SAVE it.

Files can be locked.

JPEGs can be converted to TIFFs for minimal loss editing.

| Reply
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