On Sep 24, 2006, at 5:24 PM, Theodore H. Smith wrote:
Firstly... I think you should give up.
Unless you want a slow solution.
Or do it in C, and be prepared to use some mind bending algorithms
to optimise it ;)
It's not going to be fast in RB, that is all. You need low level
access for it to be fast. You could petition for RB to have C-like
pointers, perhaps... and to get pointer access to pictures also.
And an optimising compiler that is good at optimising pointer code.
While doing this in a C Plugin would have the fastest results, I am
sure that there are a lot of optimizations which can be done within
REALbasic.
I was just thinking that if you sample down the two source pictures
before evaluating the pixels, you would get done a lot faster (but
with less accurate results). For example, the iSight camera gives
output at 640x480... you could scale it down to a 256x192 picture and
your code might run approximately 625% faster than the original.
Scale it down to 128x96 and your code might run approximately 2500%
faster than the original.
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