compileIt for revolution?

[Jon]

Alex:

An excellent post, explaining the theory, showing actual results, and 
summarizing pros and cons.  Thank you!

Jon

===

Jon wrote:

Let's put it differently.  My real interest is in seeing how to optimize 
Rev code to access arrays in general, and image data in specific, as 
rapidly as possible.   

Alex wrote:

<snip>

So the big message for image processing is - don't access it as an 
array, access it as chars in a variable.


<snip>

Although I didn't complete it, I believe this technique applied 
throughout your example would reduce the overall time for this photo of 
mine from around 55 seconds to 10 or 12 seconds.But the cost is some 
ugly, barely maintainable code, and it's still beyond the stretch of 
what a user would be willing to wait for a simple transformation to be 
done.