- From: Erik Dahlstrom <ed@opera.com>
- Date: Tue, 13 Jul 2010 16:49:42 +0200
- To: www-svg@w3.org
- Cc: "Dr. Olaf Hoffmann" <Dr.O.Hoffmann@gmx.de>
On Tue, 29 Jun 2010 16:00:47 +0200, Dr. Olaf Hoffmann <Dr.O.Hoffmann@gmx.de> wrote: > Hello www-svg, > > it is nice to see, that the formula for the y dimension is > added for the feGaussianBlur. > Nice as well to get now the input image for standard deviation zero. > > Minor cosmetic questions/suggestions: > a) Why is H(x) styled in black, I(y) in red? Just an editing mishap, fixed. > b) Why is the approximation formula only for s available? > (should be sufficient to write, that the approximation applies > for the t correspondingly) I've added an informative note to that effect, see [1]. > c) Maybe worth to mention, that for something like stdDeviation="1 0" > or stdDeviation="0 1" with '1' representing something different from > 0, the mathematically expected result is not the input image. > It is only a blur in one direction. Fair enough, I've added explicit mention of this case, see [1]. > However, because the definition does not explictly mention > this case, implementations will hopefully do it as mathematically > expected. Yes, one would hope so :) I've added two testcases for the changes in question: http://dev.w3.org/SVG/profiles/1.1F2/test/svg/filters-gauss-02-f.svg http://dev.w3.org/SVG/profiles/1.1F2/test/svg/filters-gauss-03-f.svg Please let us know if these changes satisfies your comment. /Erik [1] http://dev.w3.org/SVG/profiles/1.1F2/publish/filters.html#feGaussianBlurElement -- Erik Dahlstrom, Core Technology Developer, Opera Software Co-Chair, W3C SVG Working Group Personal blog: http://my.opera.com/macdev_ed
Received on Tuesday, 13 July 2010 14:50:19 UTC