RE: [css3-background] vastly different takes on "blur"

Request:  Please incorporate the "mathematical vs. human perception" in your renderings.  For me at least, it really helps make evaluation less ... um ... blurry.

Thanks,
-Brian

From: Brad Kemper [mailto:brad.kemper@gmail.com]
Sent: Wednesday, June 23, 2010 10:11 AM
To: Sylvain Galineau
Cc: Brian Manthos; fantasai; Simon Fraser; Tab Atkins Jr.; robert@ocallahan.org; www-style@w3.org
Subject: Re: [css3-background] vastly different takes on "blur"

OK. I'm pretty booked today during (US West Coast) daytime, but will try to have something tonight or tomorrow to present that is heavily slanted toward my viewpoint. Uh, I mean, something fair and acceptable for voting on, including some zoomed-in bitmaps and where they fall on the edge, etc., to evaluate.


On Jun 23, 2010, at 10:02 AM, Sylvain Galineau wrote:


Same. We can't really agree on the definition of a visual effects without understanding and agreement of what it should look like (see spread vs. scaling discussion).
And it sounds like current implementations may not allow us to figure it out.

Unlike Brad though, I am somewhat sensitive to what SVG, canvas et al. do. It would not be helpful to authors mixing HTML and SVG to have to juggle multiply/divide
by 2 depending on the node type just so they get the same rendering. At least we should have a good reason for the difference.

From: www-style-request@w3.org<mailto:www-style-request@w3.org> [mailto:www-style-request@w3.org] On Behalf Of Brian Manthos
Sent: Tuesday, June 22, 2010 4:17 PM
To: Brad Kemper; fantasai
Cc: Simon Fraser; Tab Atkins Jr.; robert@ocallahan.org<mailto:robert@ocallahan.org>; www-style@w3.org<mailto:www-style@w3.org>
Subject: RE: [css3-background] vastly different takes on "blur"

+1 vote for Brad Blur Ballot Bitmaps

* Brian