Re: Wavelet Codec
From: Harald Grossauer (grossauer.harald_at_uibk.ac.at)
Date: 04/16/04
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Date: Fri, 16 Apr 2004 13:02:04 +0200
Alain Broisin wrote:
> Right, I need to find wavelet encoder (open source if possible) in order
> to compress a minimum of 150 images/sec on a Athlon 2600+ linux machine.
Image size? Color or BW? To be honest, I doubt you will find one.
Assuming 640x480 BW images, and a wavelet transform algorithm with a
complexity O(n log n) this would already require almost 600 million
"operations" per second, where one "operation" certainly is more than one
CPU instruction. Even using highly optimized SSE algorithms I think the
speed you want is only achievable if the images are very small.
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