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A new PNG spec

(www.programmax.net)
625 points bluedel | 1 comments | 24 Jun 25 13:01 UTC | HN request time: 0.197s | source
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ggm ◴[25 Jun 25 05:26 UTC] No.44373884[source]▶
Somebody needs to manage human time/date approximates in a way other people in s/w will align to.

"photo scanned in 2025, is about something in easter, before 1940 and after 1920"

replies(2): >>44374228 #>>44374233 #
SchemaLoad ◴[25 Jun 25 06:38 UTC] No.44374228[source]▶
The issue that gets me is that Google Photos and Apple photos will let you manually pick a date, but they won't actually set it in the photo EXIF, so when you move platforms. All of the images that came from scans/sent without EXIF lose their dates.
replies(2): >>44374285 #>>44377765 #
ggm ◴[25 Jun 25 06:49 UTC] No.44374285[source]▶
It's in sidecar files. Takeout gets them, some tools read them.
replies(1): >>44377940 #
kccqzy ◴[25 Jun 25 14:45 UTC] No.44377940[source]▶
But there is no standardization of sidecar files, no? Whereas EXIF is pretty standard.
replies(2): >>44378063 #>>44385882 #
1. account42 ◴[26 Jun 25 10:10 UTC] No.44385882[source]▶
XMP [0] is a standard but no idea of Google and Apple use it (Darktable does). You could also store EXIF data as sidecar files but I don't think that has better support.

[0] https://en.wikipedia.org/wiki/Extensible_Metadata_Platform