Gaussian blur on bitmap, how?

Gaussian blur on bitmap, how?

Post by Gil Delavou » Sat, 26 Sep 1998 04:00:00



Hi,
Where can I find a documentation for implement a gaussian blur algorythm on
a bitmap?
Source code would be appreciated too.
Thanks
Gil
 
 
 

1. Gaussian blur, other blur, no blur

I am working on finishing up a team photo- a HS, UAS football type of
picture, where there are several rows of players in uniform, looking
stolidly ahead, etc. nothing too unusual about it, except the lighting:
Fill flash was used, but the light was very late afternoon, diffuse
through partial cloud cover, and almost straight on the subjects. It
wasn't too hard to get the color balance right, but it seemed counter
intuitive to set the temp in PS (actually Lightroom) to around 4,000
when the 'warmth' was so apparent. Anyway, that's an aside.

The matter I am trying to deal with is at the top of the photo, and at
the top sides, where the bleacher seats are very apparent, and quite in
focus. They are raised and painted aluminum seats on concrete, so that
you see about a two inch horizontal strip of purple every couple of feet
in the places no one is seated. I've tried Gaussian blur at various
levels, but am not thrilled with the results. I've thought of adding a
gradient, but not sure where to go on that. At the top will be large
letters with the team name.

It'll look all right if I don't do any blur or other technique to lessen
the impact of the horizontal lines, or so I believe, as it's not been
done in years before, and most folks looking at it will see the players
they know, and not be concerned with what I see as a glaring deficiency....

Or will they?

--
John McWilliams

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