11
votes
Accepted
Should I convert my family pictures from JPEG to PNG?
There is no data loss from simply opening them, only by changing them & re-saving.
Any data already lost can never be recovered.
Simply converting now to a lossless format will not change the ...
- 23.4k
5
votes
Should I convert my family pictures from JPEG to PNG?
I recently have become concerned about the fact that I read there is progressive loss every time they are opened.
Opening an image without editing and resaving does not alter it. However, xenoid ...
- 27k
4
votes
Should I convert my family pictures from JPEG to PNG?
For digital preservation, I find the following optimal:
Shoot RAW + JPEG.
Store both files.
RAW is as close as possible to what the sensor sees. Even PNG has some losses, including losses from ...
- 6,845
3
votes
Is there any way of achieving cross-application non-destructive RAW editing? (Maybe xmp files?)
They're all proprietary. Each application uses their own algorithms to convert the raw data. To the best of my knowledge none of the adjustments made with one application will translate identically in ...
- 176k
3
votes
Accepted
How can I restore this scratched 1930s print?
I took Nathan's image as a baseline then used Wavelet Decomposition with a rough select around the people to duplicate two layers of detail and re-merge it back in to try to sharpen without producing ...
- 2,239
2
votes
Permanent, personal data storage solutions for high resolution photography
Regarding longevity: Permanent, ideally. As it says in the title. I'd like to keep photos forever, if possible. Like a digital archive.
There will be no such thing as a passive archive system. There ...
- 20.5k
2
votes
Accepted
Is there any way of achieving cross-application non-destructive RAW editing? (Maybe xmp files?)
After a few days of research, I've concluded that at the time of writing there is no holy grail. But as for futureproofing I'd go the following route:
keep the original RAW file
work with Adobe ...
- 343
2
votes
How can I restore this scratched 1930s print?
Here is my image after removing major scratches and defects. I tried playing around with whole-image FFT to remove finer scratches and texture but could not find a good way to keep foreground details (...
- 173
2
votes
I need advice organising and digitising old photos
I'm not really sure what you need as an answer here.
To answer exactly what you asked,
Yes to scanning, sorting would be a premium. Probably better to do that yourself.
You would probably be far ...
- 23.4k
1
vote
Missing lines at regular intervals in flatbed scanners. Can it be avoided or solved?
I scanned a long thin kitchen knife run diagonally across the bed of my Epson 4990 as a source of effectively infinite detail at both 4800 and 2400ppi 48-bit color in Vuescan (to generate maximum ...
- 541
1
vote
What should I consider when doing digital preservation of old documents using photography?
I think you maybe asking two separate sets of questions: 1) What are recommended settings and conditions for the best photo and 2) What is the best format to ensure longevity of the digital file?
For ...
- 14.8k
1
vote
Should I convert my family pictures from JPEG to PNG?
Lots of long answers here.
Should I convert my family pictures from JPEG to PNG?
NO!
but I recently have become concerned about the fact that I read there is progressive loss every time they ...
- 235
1
vote
Permanent, personal data storage solutions for high resolution photography
Working as an IT Professional and a hobbyist photographer, I'm paranoid about data security.
For me, no matter what storage mechanism you use, you should always have the data in (at least) two places....
- 172
1
vote
Is there any way of achieving cross-application non-destructive RAW editing? (Maybe xmp files?)
The DNG file format will allow saving adjustment information directly in the file, rather than a sidecar file, and the DNG format is a documented specification that is free for anyone to use.
Some ...
- 241
Only top scored, non community-wiki answers of a minimum length are eligible