From: Mathieu Malaterre <mathieu.malaterre@gm...>  20070515 12:06:27

Hello, I have a signal (an image 256x256 acquired over 8 time points). I need to fit a function on those values. So for each pixel I need to run an optimizer, with 8 empirical value, and the function is : F(a,b,c) = a * ( 1  b * exp(  t / c ) ) (t = 1..8) As far as I understand I cannot use LevenbergMarquardt implementation in vnl since it imply expressing F(a,b,c) as the sum of 3 square functions. what's the next best option for me ? Thanks,  Mathieu 