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| author | Michael J. Chudobiak <mjc@avtechpulse.com> | 2012-05-11 09:22:00 -0400 |
|---|---|---|
| committer | Vincent Untz <vuntz@gnome.org> | 2012-06-08 13:57:53 +0200 |
| commit | 266075cf62844ab639553c807de52ea9866f34b5 (patch) | |
| tree | c365af646758ec0219b85dca287c7f00cc7ec911 | |
| parent | 77b96e2fb58ddb5ed8d5e41b3a8c1aafc2831a8c (diff) | |
| download | xdg-specs-266075cf62844ab639553c807de52ea9866f34b5.tar.xz | |
thumbnail: Specify that orientation metadata should be respected
https://bugs.freedesktop.org/show_bug.cgi?id=49798
See http://lists.freedesktop.org/archives/xdg/2012-May/012396.html
| -rw-r--r-- | thumbnail/thumbnail-spec.sgml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/thumbnail/thumbnail-spec.sgml b/thumbnail/thumbnail-spec.sgml index 2eb1a53..cc6c70c 100644 --- a/thumbnail/thumbnail-spec.sgml +++ b/thumbnail/thumbnail-spec.sgml @@ -234,6 +234,15 @@ $XDG_CACHE_HOME/thumbnails/fail/ possible quality when creating the thumbnail. The exact meaning of this is left to the specific program but it should consider applying antialiasing.</para> + + <para>If the original file contains metadata affecting the interpretation + of the image, it should be respected as much as possible. In particular, + metadata specifying the orientation of the original image data should + always be respected. The image data should be transformed as specified by the + metadata before generating the thumbnail. JPEG files commonly have Exif + orientation tags. TIFF files may also have Exif orientation tags, although + this is less common. It is less critical, but still desirable, to respect + other image metadata, such as white balance information.</para> </sect2> <sect2 id="addinfos"><title>Thumbnail Attributes</title> |