W3C home > Mailing lists > Public > www-svg@w3.org > November 2002

Re: Availability of image metadata

From: Dean Jackson <dean@w3.org>
Date: Wed, 13 Nov 2002 22:36:41 +1100
To: Tobias Reif <tobiasreif@pinkjuice.com>
Cc: www-svg@w3.org
Message-ID: <20021113113641.GB29066@grorg.org>

On Wed, 13 Nov 2002, Tobias Reif wrote:

> Chris Lilley wrote:
> >It seems a rather large task to expect a single raster image DOM,
> >independent of format and independent of how the metadata got
> >shoehorned into the image file and what schema it uses, to be able to
> >get the width (or the photographer, or the focal length).
> Is it currently possible to get the width of a PNG/JPEG image 
> (referenced by an image element), eg via ECMA Script? If not, that might 
> be feasible, and would be useful.

This would be very useful, especially for SVG viewers that have
not yet implemented the preserveAspectRatio attribute on

SVG 1.2 (coming soon!) has the mention of a feature such as
this. However, even for raster content, it isn't always
clear what the width and height are (say JPEG2000).

Received on Wednesday, 13 November 2002 06:36:57 UTC

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