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Re: [css3-images] How does image-orientation interact with EXIF data?

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Wed, 15 Feb 2012 16:24:08 -0800
Message-ID: <CAAWBYDCv4gwv62hhqRVXjyH4-4CRYTUcB9XD7GLjhbQvfinpTA@mail.gmail.com>
To: Simon Fraser <smfr@me.com>
Cc: "www-style@w3.org list" <www-style@w3.org>
On Tue, Feb 7, 2012 at 12:24 AM, Simon Fraser <smfr@me.com> wrote:
> CSS3 Images talks about images being encoded sideways, and how this can be corrected for presentation via the image-orientation property:
> <http://dev.w3.org/csswg/css3-images/#image-orientation>
>
> However, it doesn't describe how this interacts with EXIF data in the image. My understanding is that an image may be tagged with EXIF data that indicates that the camera was in landscape orientation when the picture was taken, but this does not affect how the image is encoded.
>
> I think the spec needs to talk about how image-orientation and EXIF rotation data interact.

There's a note in the spec now about the fact that browsers ignore
EXIF data.  I plan to add the ability to auto-rotate based on exif
data to level 4.  Is this sufficient to address your comment?

~TJ
Received on Thursday, 16 February 2012 00:24:58 GMT

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