Just what I was about to say...
p
On Sep 15, 2009, at 5:36 PM, Alessandro Sabatelli wrote:
Image -> Affine Clamp -> Gaussian Blur -> Crop
.xX
On Sep 15, 2009, at 3:50 PM, vade wrote:
The black edges come from the built in Gaussian Blur making the ROI
larger than the output image. Compute a separable gaussian
convolution kernel like you normally would in GLSL but dont make
the ROI larger (clamp it to the size if the input image, which is
what im assuming you want). That should do the trick.
Alternatively, check out my blurs: http://002.vade.info (note they
use GLSL not CIKL and may not have the bit depth accuracy you want,
but they are made for realtime use :)
On Sep 15, 2009, at 6:45 PM, David Yamnitsky wrote:
Hi List, I need to use a gaussian blur that doesn't have the black
edges as the built-in filter does, so I need to implement repeated
edges. I was just wondering if I can get some tips on the most
efficient way to do this. My initial instinct was to use a "Render
In Image" whose size is the image's size plus added border equal
to the radius of the blur, and use a GLSL shader to render the
image with repeated edges, but I feel that there may be a faster
way to do this as this could cause a new offscreen buffer to
created very often, up to every frame as the radius changes. Is
there an easier way to do this? Maybe using a custom Core Image
filter?
Thanks in advance!!!
David Yamnitsky
[email protected]
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