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Lecture 3: Sampling, Aliasing, Antialiasing (88)
liboan

Is this practical because 1-pixel filters can be applied in parallel (basically pointwise multiplication over a matrix)

katamarisun

Convolution is slightly different from point wise multiplication (especially for filters), but they can generally be unrolled into either matrix multiplication, or the filter is generally small enough such that the operation is essentially a constant time operation.

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