Content deleted Content added
Skywatcher68 (talk | contribs) m Undid revision 1214838472 by 61.68.235.233 (talk) WP:UCR |
|||
| (7 intermediate revisions by 6 users not shown) | |||
Line 33:
{{Expand section|with=changes|date=August 2020}}
The [[Japan Electronic Industries Development Association]] (JEIDA) produced the initial definition of Exif. Version 2.1 of the specification is dated 12 June 1998.{{cn|date=February 2024}} [[Japan Electronics and Information Technology Industries Association|JEITA]] established Exif version 2.2 (a.k.a. "'''Exif Print'''"), dated 20 February 2002 and released in April 2002.<ref>{{cite web |author=Technical Standardization Committee on AV & IT Storage Systems and Equipment |title=Exchangeable Image File Format for Digital Still Cameras |id=JEITA CP-3451 |version=Version 2.2 |publisher=[[Japan Electronics and Information Technology Industries Association]] |url=http://www.exif.org/Exif2-2.PDF |date=April 2002 |access-date=2008-01-28 |archive-date=2017-12-24 |archive-url=https://web.archive.org/web/20171224163311/http://exif.org/Exif2-2.PDF |url-status=dead }}</ref> Version 2.21 (with [[Adobe RGB]] support) is dated 11 July 2003, but was released in September 2003 following the release of DCF 2.0. Version 2.3 was released on 26 April 2010, and revised to 2.31 in July 2013 and revised to 2.32 on 17 May 2019, was jointly formulated by [[Japan Electronics and Information Technology Industries Association|JEITA]] and [[Camera & Imaging Products Association|CIPA]]. The latest version, 3.0, was released in May 2023, and brings, among other things, support for UTF-8 to allow text data in non-ASCII encoding.<ref name="exif30-iptc">{{cite web|url=https://iptc.org/news/exif-3-0-released-featuring-utf-8-support/ |website=IPTC |title=Exif 3.0 released, featuring UTF-8 support |date=1 June 2023}}</ref>
{| class="wikitable"
Line 51:
|2.0
|November 1997
|
|-
|2.1
Line 105:
Exif data are embedded within the image file itself. While many recent [[Graphics software|image manipulation programs]] recognize and preserve Exif data when writing to a modified image, this is not the case for most older programs. Many image gallery programs also recognise Exif data and optionally display it alongside the images.
Software libraries, such as libexif<ref>{{cite web | url=https://libexif.github.io/ | title=The libexif C EXIF library | access-date=2022-07-06 }}</ref> for [[C (programming language)|C]] and Adobe XMP Toolkit<ref>{{cite web | url=https://www.adobe.com/devnet/xmp.html | title=Adobe XMP Toolkit SDK | publisher= Adobe Inc. }}</ref> or Exiv2<ref>{{cite web | url=http://www.exiv2.org/ | title=Exiv2 Image Metadata Library | publisher=Andreas Huggel | access-date=2009-02-12 | archive-date=2012-02-12 | archive-url=https://web.archive.org/web/20120212032622/http://www.exiv2.org/ | url-status=dead }}</ref> for [[C++]], Metadata Extractor<ref>{{cite web | url=http://www.drewnoakes.com/code/exif/ | title=Metadata Extractor | publisher=Drew Noakes | access-date=2011-02-18 | archive-date=2007-09-27 | archive-url=https://web.archive.org/web/20070927201245/http://www.drewnoakes.com/code/exif/ | url-status=dead }}</ref> for [[Java (programming language)|Java]], [[Python Imaging Library|PIL/Pillow]] for [[Python (programming language)|Python]], [[LEADTOOLS]] or [[ExifTool]]<ref>{{cite web | url=http://owl.phy.queensu.ca/~phil/exiftool/ | title=Image::ExifTool Perl library | publisher=Phil Harvey | access-date=2009-02-12}}</ref> for [[Perl]], parse Exif data from files and read/write Exif tag values.
==Problems==
Line 156:
|-
|Orientation (rotation)
|top-left [8 possible values<ref>{{cite web |url=
|-
|Software
| |||