John Kozak <[EMAIL PROTECTED]> writes: > data Pixel a = Pixel !a !a !a deriving Show
> I use ImageMagick to load the image, then build an Array of Pixel > Floats. Building the array takes 45 seconds on a 2.5Ghz P4 with > code compiled -O2, which seems slow to me - are my expectations > unrealistic? I've tried various UNPACK things which didn't make > much difference. Are you using UArrays? If you're going to read the whole image anyway, they will probably be faster than the normal arrays. Also, I read somewhere that operations are often specialized for Double but not Float - since you talk about image loading rather than processing, it may be worth it to use Floats to save space, even if Doubles could be faster. -kzm -- If I haven't seen further, it is by standing in the footprints of giants _______________________________________________ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
