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--- a +++ b/src/foreign/levmar/README.txt @@ -0,0 +1,51 @@ + ************************************************************** + LEVMAR + version 2.1.3 + By Manolis Lourakis + + Institute of Computer Science + Foundation for Research and Technology - Hellas + Heraklion, Crete, Greece + ************************************************************** + + +GENERAL +This is levmar, a copylefted C/C++ implementation of the Levenberg-Marquardt non-linear +least squares algorithm. levmar includes double and single precision LM versions, both +with analytic and finite difference approximated jacobians. levmar also has some support +for constrained non-linear least squares, allowing linear equation and box constraints. +You have the following options regarding the solution of the underlying augmented normal +equations: + +1) Assuming that you have LAPACK (or an equivalent vendor library such as ESSL, MKL, + NAG, ...) installed, you can use the included LAPACK-based solvers (default). + +2) If you don't have LAPACK or decide not to use it, undefine HAVE_LAPACK in lm.h + and a LAPACK-free, LU-based linear systems solver will by used. + +It is strongly recommended that you *do* employ LAPACK; if you don't have it already, +I suggest getting clapack from http://www.netlib.org/clapack. However, LAPACK's +use is not mandatory and the 2nd option makes levmar totally self-contained. +See lmdemo.c for examples of use and http://www.ics.forth.gr/~lourakis/levmar +for general comments. + +The mathematical theory behind levmar is described in the lecture notes entitled +"Methods for Non-Linear Least Squares Problems", by K. Madsen, H.B. Nielsen and O. Tingleff, +Technical University of Denmark (http://www.imm.dtu.dk/courses/02611/nllsq.pdf). + + +COMPILATION + - On a Linux/Unix system, typing "make" will build both levmar and the demo + program using gcc. Alternatively, if Intel's C++ compiler is installed, it + can be used by typing "make -f Makefile.icc". + + - Under Windows and if Visual C is installed & configured for command line + use, type "nmake /f Makefile.vc" in a cmd window to build levmar and the + demo program. In case of trouble, read the comments on top of Makefile.vc + +Notice that *_core.c files are not to be compiled directly; For example, +Axb_core.c is included by Axb.c, to provide single and double precision +routine versions. + + +Send your comments/bug reports to lourakis@ics.forth.gr