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[SVG1.1F2 LC] 15.17 feGaussianBlur

From: Dr. Olaf Hoffmann <Dr.O.Hoffmann@gmx.de>
Date: Tue, 29 Jun 2010 16:00:47 +0200
To: www-svg@w3.org
Message-Id: <201006291600.47824.Dr.O.Hoffmann@gmx.de>
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?
b) Why is the approximation formula only for s available?
(should be sufficient to write, that the approximation applies
for the t correspondingly)
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.
However, because the definition does not explictly mention
this case, implementations will hopefully do it as mathematically

Received on Tuesday, 29 June 2010 14:08:50 UTC

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