Re: [Algorithms] Gaussian blur kernels

[Jon W. <jw...@gm...>]

Simon Fenney wrote:
> Oh, I agree that there is a difference between what is 'best' for audio
> and graphics** but a box filter is far from an ideal way of downsampling
> graphics. I had a test image which was rendered with 10k samples per
> pixel but downfiltered*** using a box filter. The amount of aliasing
> surprised people. 
>   

Didn't we discuss this like three years ago, in the context of "what are 
textures, really?"
Once you get into those details, you start having to make assumptions 
about what a sample is.
Is it a point sample of a band-limited function?
Is it an area average for a picture sensor?
If so, what is the shape of that area filter?

Sincerely,

jw



-- 

  Revenge is the most pointless and damaging of human desires.