2 Improved Integer backprojection method
3 Fixed nearest neighbor to be truly nearest neighbor
4 Made linear interpolation more integer arithmetic -> speed improvement
5 Finished converting all C files to C++
6 Converted all use of malloc/free to C++ new/delete
7 Began object-oriented conversion of Phantom and Projection structures
10 Converted MPI data structures to C++ object
11 Made ImageFile directly inherit from Array2dFile
15 Portable IF (image file) format implemented with objects (SDF removed)
16 - Now all data files are cross-platform compatible
17 Converted from MPI to MPI++
18 Converted backprojection to object-oriented
19 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
22 Simpilifed endian handling
25 Added support for 64-bit (IA64) CPU
26 Removed broken B-spline interpolation
27 Added support for cygwin platform under Windows 2000
28 Added support for 16-bit PNG graphics
31 Added compile-time configuration of endian order
34 Modified the raysum file format to be platform independent
37 Added Microsoft VC compatibility
38 Cleaned up compilation warnings in libgraph
41 Continued conversion to ANSI C
42 Removed old CRT routines
45 Renamed pictures to phantoms, objects to phantom elements
46 Continued code cleanup
49 More code cleanup with reorganizing libraries
50 Added --log and --exp to sdf-1
51 Allowed negative numbers for window levels in CGI interface
54 Continued code cleanup
58 Better documented, coded raysum in-memory on on-disk options
61 Cleaned out library that wasn't being used by CTSim
62 Modified ctsim.cgi to read in configuration file ctsim.conf
65 First open source distribution for GNU/Linux
68 Converted to GNU/Linux
69 added MPI support via LAM library
72 Developed under MS-DOS and IBM EGA graphics