1 Aug 22, 2005 Version 4.4.2
2 * New URL for downloading CTSim
4 Aug 22, 2005 Version 4.4.1
5 * work-around for compilation problems on Fedora 4 and wxWin 2.4.2
7 Aug 22, 2005 Version 4.4.0
8 * Changes in configure.ac for X.org compatibility with Debian Etch
9 and FC4. May not be backward compatibility with XFree86.
11 Aug 10, 2004 Version 4.3.2, Version 4.3.3
12 * Minor changes in man pages to fix groff warnings
14 Nov 1, 2003 Version 4.3.1
15 * Add support for SuSE AMD64
17 Oct 5, 2003 Version 4.3.0
18 * Ported to incompatible FFTW3 library. CTSim will no longer compile or run with FFTW2.
19 * Save FFTW3 in $HOME/.fftw3-wisdom on platforms where getenv function is available
21 Oct 3, 2003 Version 4.2.7
22 * Add support for building on RedHat AMD64
24 Sep 30, 2003 Version 4.2.7
25 * Fix minor issue with floating point difference backprojection, add
28 * Fix building with newest versions of automake 1.7
30 * Add support for 8-byte longs [for example, Athlon64] in
31 integer difference backprojection allowing for 64-bit integer
34 Mar 22, 2003 Version 4.2.3
36 * Added Fourier reconstruction method
38 * Support gcc 3.2, wxWindows 2.4, and MacOS X
40 * Fix polar interpolation
42 Jun 26, 2002 Version 3.5.6
44 * Fix minor color PNG image importing bug
46 * Bug fix for building on Debian alpha platform
48 * Fix g++ compilation warnings
50 Jun 13, 2002 Version 3.5.5
52 * Fix printing of version number
56 * Updated Win32 compatibility
58 Jun 8, 2002 Version 3.5.4
60 * Print version number in log window with About command
62 * Fix problem with captions not showing on some windows. Reworked
63 creation of new windows.
65 * Disabled status bar on 3d views
67 * Fix bug in configure.ac that prevented using compiler
70 * Updated About splash screen
72 May 29, 2002 Version 3.5.3
73 * Added support for g++ 3.04 compiler
75 May 8, 2002 Version 3.5.2
76 * configure: improved CTN (DICOM) installation search
77 * src/ctsim.cpp: Fixed initial image size with import command
79 May 5, 2002 Version 3.5.1
83 * ctsim: Added tips to be displayed at startup and via the help menu.
84 * ctsim: Added center-detector concept. Allow for detector array
85 to be any arbitrary distance from center of scanner. As a result,
86 projection files are not incompatible with previous version of
88 * ctsim: Added threaded tasks and background manager for
89 background processing as well as taking advantage of multiple-CPU's
90 on SMP systems. (Microsoft Windows only)
91 * ctsim: Added plot t-theta sampling to projection file menu.
92 * ctsim: Added Reconstruction with Rebinning for faster
93 divergent beam reconstructions.
94 * ctsim: Added import and export of DICOM image files.
95 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
96 * ctsim: Added FFT/IFFT of columns of image files.
97 * ctsim: Added clipboard cut/copy/paste for image files.
98 * ctsim: Added region of interest to reconstructions.
99 * ctsim: Added Convert Rectangular Image to Projection files
100 * ctsim: Added "Verbose Logging", "Startup Tips", and
101 "Background processes" options to Preferences dialog.
102 * ctsim: Added plotting of projection file histograms.
103 * plotfile: Added scattergram plot functions
104 * ctsim: Added accelerator key for File-Properties
105 * ctsim: Improved wireframe 3-d display to remove hidden
107 * backprojectors.cpp: Added setting of axis extent and increment
109 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
110 projection data files.
114 * views.cpp: reduced calls to progress bar update, significant speedup
115 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
116 not being displayed on Unix platforms.
117 * views.cpp: Added out-of-memory checks to display for huge
118 image and projection files.
119 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
120 * imagefile.cpp: Fixed scaling factor in fftRows
121 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
123 * sgp.cpp: Fixed bug in drawCircle.
124 * distribution: fixed problem with documentation files not
125 being included with the distribution (Reported by Ian Kay).
126 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
127 * fixed ctsimtext shell when giving no parameters to function-name
128 * phm2if, phm2pj: Updated help messages for renamed phantoms
130 3.0.3 - Released 2/20/01
132 * ctsim: Fixed core dump on Linux with OpenGL
134 * ctsim: Fixed context-sensitive help on Linux
136 * ctsim: Fixed About box on Linux
138 3.0.2 - Released 2/20/01
140 * scanner.cpp: Fixed bug when number of detectors was even.
142 * ctsim: Improved error handling when trying to convert
143 divergent projections into polar form.
145 3.0.1 - Released 2/19/01
147 * ctsim: Fixed dialog box for reconstruction so that
148 rotation angle setting will stay fixed in-between use
151 * syserror: Fixed display bug for trace messages
153 * ctsim: MSVC optimization bug work-around, compiler
156 3.0.0 - Released 2/19/01
158 * ctsim: Massive update/fix to online help and print manual.
160 * ctsim: Added context-sensitive help to dialog boxes
162 * ctsim: Reformated all dialog boxes, much nicer now.
164 * ctsim: Improved accelerator key handling
166 * global: Added Hanning filter.
168 * global: Improved default parameters to that all defaults give
171 3.0.0beta1 - Released 2/11/01
173 * ctsim: Added most-recently-used files to File menu with
174 registry storage between executions.
176 * ctsim: Hides arcane features unless enabled by Preferences dialog
178 * ctsim: Added MDI interface for Windows version and made it default for Windows.
180 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
182 * ctsim: Added graphical About box
184 * ctsim: Escape key now removes cursor lines from image file view
186 * ctsim: Added Revert to ImageFile menu
188 * ctsim: Added accelerator (hotkeys) to frames
190 * ctsim: Online help added!
192 * backprojector: Added cubic interpolation
194 * ctsim: Added icons to Frames on X-Window and MS Windows versions
196 * ctsim: Fixed tick-label placement for plots on projection and
197 reconstruction dialogs.
199 * timer.h: Add use of _ftime when compiling on MSVC
201 * global: Projection files are not compatible with previous version
202 due to new scanner definitions.
204 * global: deleted concept of field-of-view and added
205 view ratio and scan ratio concepts.
207 * ctsim: Fixed crash on shutdown bug
209 * pjinfo: Fixed bug when doing --dump and not specifing --endview
211 * phm2pj: Fixed MPI bug with broadcasting of variables
213 * ctsimtext-lam: Changes for first version to compile under lam
216 3.0.0alpha5 - Released 1/12/00
218 * ctsim: Added EZPlotDialog, used by debugging plots in
221 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
222 bug in parsing command-line parameters.
224 * views.cpp: Fixed bug in copying of labels from images to
227 * syserror.cpp: fixed reporting for fatal errors
229 * projections.cpp: fixed MSVC failure with std:: namespace
231 * procsignal.cpp: fixed bug in equiangular reconstructions
232 for frequency/inverse-fourier filtering
234 3.0.0alpha4 - Released 1/09/01
236 * ctsim: Added reset to full-intensity scale menu item
238 * ctsim: Add conversion of projections to polar plot [Thanks to
239 Ian Kay for reference and math hints in polar bilinear scaling]
241 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
244 * ctsim: imagefile labels are now copied to plotfiles
246 * ctsim: Added more analyze menuitems
248 * ctsimtext: First version. All command-line tools are now accessed
249 through this master shell. Has both command-line and interactive
252 * ctsim: Fixed initialization of min/max bug for PlotFiles
254 * ezplot: Cleaned up y-tick label placement
256 * sgp: Added better support for projection/reconstruction animation
258 3.0.0alpha3 - Released 1/02/01
260 * ctsim: Added plotting of histograms
262 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
264 * ezplot.cpp: adjusted xtick label displays for better placement
266 3.0alpha2 - Released 1/02/01
268 * ctsim: All functions of command-line tools are now in graphical ctsim
270 * ctsim: added generation of filter images
272 * ctsim: Added 2-image math functions (mul, add, div, sub)
274 * ctsim: Added export of imagefiles to graphic file formats
276 * ctsim: Added support for scaling imagefiles in new sizes
278 * ctsim: Added ability to save standard phantom definitions as
279 text files suitable for reading.
281 * ctsim: Add labels for image transformations and display of labels
282 when performing properties of images.
284 * processsignal.cpp: Fixed "off by one" bug in
285 shuffleNaturalToFourierOrder when n is even. Moved functions to
288 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
289 image math functions to complex-valued math.
291 * phantom.cpp: Added ability to save phantom files as ASCII text.
293 3.0alpha1 - Released 12/29/00
295 * Added PlotFile class to system, used by if2 and ctsim for row
296 and column plots and comparison plots
298 * ctsim: Added image comparison statistics and image subtraction
300 * ctsim: Added plotting of rows & columns with y-axis scaling
302 * ctsim: Added row and column plot comparisons between two image
305 * ctsim: Added "Process" menu to image file display with math
306 functions. Added 2-dimensional inverse Fourier to math
307 functions. Added support for complex (real/imaginary) images.
309 * mathfuncs.cpp: Reworked statistics algorithm to share between
310 imagefile and plotfile classes.
312 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
313 nsamples > 2. Added generic mage math functions, moved from
314 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
317 * array2dfile.cpp: Added code to support complex (real/imaginary)
320 * if1: Updated to handle error conditions, such as sqrt of a
321 negative number. Converted to use new ImageFile math functions.
323 * if2: Updated to output plot files and use new ImageFile class
326 * if1: Updated to use new ImageFile class math functions
328 * ezplot: Reworked to better store colors/linestyles/symbols with
329 individual curves. Improved display of labels and ticks. Updated
330 to use POL class member variable. Updated to more C++ conventions.
332 * pol: converted to C++ class. Extracted HashTable to separate
335 * sgp: Added linestyle settings
338 First Microsoft Windows GUI version
339 Modifications for Microsoft Visual C++ compilation.
340 Improved pjinfo to output binary headers and view data, useful
341 when manually compiling phantoms that vary during projection
342 process. Thanks to Ian Kay for idea and code submission.
343 Improved sorting to find median in ImageFile::statistics
344 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
345 Changed reconstruction dialog to fix onto smaller screens
346 Fixed display of plotting in Projection views
347 Improved animation displays for Projections and Reconstructions
348 Changed code to explicitly use std:: namespace rather than
349 "namespace using std" statements
350 Fixed reconstruction scaling bug introduced in 2.0.6
351 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
354 Fixed minor compilation problem with procsignal.h
356 Fixed bug when simulating projections and Trace == CONSOLE
357 Fixed scaling bug when performing redundant rotations around object
360 Improved compilation on RedHat 7
361 Changed some of ANSI C header files to C++ header files
362 Removed README.RedHat7
365 Added documentation for --geometry setting
366 Added README.RedHat7 document
369 Fixed bug in generation of binary PGM files
370 Fixed MPI compilation bug in phm2pj.cpp
371 Inverted y-axis output for pj2if (bug alert from Ian Kay)
374 Additions to man pages (Ian Kay)
375 Fix problem with reading of ASCII phantom files (Ian Kay)
378 Fixed syntax error in fftw configuration
379 Slight modifications to support gcc v2.9.6
382 Version 2.0.0 released!
383 ctsim: Added Window menu to Main frame
384 ctsim: Disabled not support reconstruction method
385 Fixed obscure bug in sys_error
386 Fixed compilation in mingw environment not present
387 Fixed compilation in non-graphical environments
390 ctsim: Added animation of reconstruction
391 ctsim: Added saving of dialog parameters for Projection & Reconstruction
392 ctsim: Added progress dialog for rasterization of phantom
393 ctsim: used setpriority to set lower priority
394 ctsim: fixed pReconstruct not being deleted causing scaling problem
395 ctsim: fixed projection animation dialog buttons
398 ctsim: Added projection graph to animation of projection collection
399 ctsim: Added single stepping to projection collection animation
400 ctsim: improved File/Properties display for projection files
401 ctsim: Added progress dialog for reconstructions
402 ctsim: Added file labels for projection and reconstruction images
403 ctsim: Made File/Properties bring up modal dialogs
404 Added reconstruction for Equilinear and Equiangular geometries
405 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
406 Separated reconstruction into Reconstructor class
407 Fixed center of detector adjustment for even number of detectors
408 Added --enable-static to generate statically linked programs
411 ctsim: Added animation of projection collection processs
412 ctsim: Added Auto Scaling for image windows
413 ctsim: Change menus from "windowing" to "display scaling"
414 Added FieldOfView and FocalLength ratio parameters to projection collection
415 Added FocalLength & FieldOfView fields to projection data files
416 Added Projection collection for Equilinear and Equiangular geometries
417 Changed name of Rowland Phantom to correct name of Shepp-Logan
418 Fixed bug in backprojection selection
421 Added RCS Id strings to executable files
422 Added RPM Spec file for RPM package creation
423 Added loading of ASCII phanthom definitions from files
424 Fixed compilation for non-SGP architectures
425 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
426 Added Filter-Generation option to reconstruction to allow direct or
427 inverse_fourier construction of filters
428 Added median to statistics and to auto-windowing
431 Added line color support to SGP
435 Finished support for dmallocxx library
436 Fixed bug in SignalFilter::convertFilterMethodNameToID()
437 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
438 G2 windows and well as WXWindows.
439 ctsim program: "Create Phantom" now shows phantom object
440 Fixed row-plot bug in if-2
441 Reworked EZPlot's multiple plot operation
444 ctsim program: improved initial size and scroll area for image
446 ctsim program: added rasterization parameters, projections parameters,
447 and reconstruction parameters dialogs
448 Moved char[] static definition from header files to c++ files
449 Completely reorganized option processing in classes to improve
450 expandability and to assist ctsim graphical user interface.
453 ctsim program: Added dialog to set minimum/maximum display levels
454 Started ctsim.tex document file
457 Fixed compiler warnings at -Wall level
458 Began work on CTSim program to be graphical front-end of all functions
459 Moved current src/*.cpp to tools/*.cpp
460 Made CTSim graphical front-end's home to be src/
463 Added highly optimized backprojection method idiff3
464 Moved comparative stats to if-2 program from ifinfo
465 Fixed image display in if2img using G2 library
466 Added column-plot and row-plot options to if-2
467 Added autoselection of analytic/calculated spatial responses to SignalFilter
468 Added frequency-based preinterpolation to SignalFilter and idiff3
469 backprojection method. Currently, this technique is still under
470 development and debugging
471 Moved graphic file writing to ImageFile class from if2img program
474 Cleaned up SignalFilter class
475 Added zeropad option to pjrec
476 Added zeropad options to html and cgi files
477 Added fourier_table and rfttw filter methods
478 Added FFTW routines to use real/half-complex transformations
481 Updated trace level processing
482 Added trace level to SignalFilter
483 Fixed magnitude vs. real output bug in FFT/Fourier filter
486 Fixed const issue with ImageFileArray
487 Fixed Array2dFile::labelsCopy()
488 Added copy constructor and assignment for Array2dFileLabel class
489 Added Timer to if-2.cpp and ifinfo.cpp
490 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
491 Added option processing for filter-method for pjrec to choose
492 between convolution, dft, & fft filtering
493 Fixed format string for EZPlot so axis labels now print
494 Added support for FFTW library
497 Rewrote Array2dFile class to be non-templated
498 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
499 Rewrote Array2dFileLabel class to make members private, added access routines
500 Removed timedate.cpp in favor of standard C library time/date functions
501 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
502 Added signature tag and creation date/time to projection files
505 Standardized string option processing by classes. All classes use character strings
506 to select options rather than numeric constants. Added fail() and failMessage()
507 methods to verify that objects are created correctly by character strings.
508 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
509 Rewrote ImageFile class
510 Started support for dmallocxx library, not finished
511 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
512 Updated ifinfo to show comparative statistics
513 Added printLabels() to Array2dFile class
514 Added printStatistics() to ImageFile class
517 Moved conversion filter name/id to Filter class
518 Moved conversion backprojection name/id to Backproj class
519 Added MPI broadcasting of strings
522 Merged proj_reconstr into class Projections
523 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
524 Code cleanup in projections.cpp
525 Moved conversion of phantom names/id to Phantom class
528 Converted projection files to C++ library with frnetorderstream
529 Converted image files to C++ library with frnetorderstream
530 Converted filter and convolution to object-oriented code
531 Changed default image file to float from double -- Changable in imagefile.h
532 Optimized image file writing on little-endian architectures
533 Updated README and INSTALL
536 Reorganized source files
537 MPI bug fixed to phm2pj.cpp
540 Reorganized include files
541 Fixed const pointers in strfuncs
544 Renamed directories, moved source files, combined source files
545 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
549 Skip versions to make version 2.0 the first fully C++ version
550 Renamed Raysums to Projections throughout files
551 Renamed Detector to Scanner
552 Converted Scanner and Projecions to full object-oriented
555 Converted Phantom and PhantomElements to Object-Oriented
556 Converted Detector to Object-Oriented
559 Improved Integer backprojection method
560 Fixed nearest neighbor to be truly nearest neighbor
561 Made linear interpolation more integer arithmetic -> speed improvement
562 Finished converting all C files to C++
563 Converted all use of malloc/free to C++ new/delete
564 Began object-oriented conversion of Phantom and Projection structures
567 Converted MPI data structures to C++ object
568 Made ImageFile directly inherit from Array2dFile
571 First C++ conversions
572 Portable IF (image file) format implemented with objects (SDF removed)
573 - Now all data files are cross-platform compatible
574 Converted from MPI to MPI++
575 Converted backprojection to object-oriented
576 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
579 Simpilifed endian handling
582 Added support for 64-bit (IA64) CPU
583 Removed broken B-spline interpolation
584 Added support for cygwin platform under Windows 2000
585 Added support for 16-bit PNG graphics
588 Added compile-time configuration of endian order
591 Modified the raysum file format to be platform independent
594 Added Microsoft VC compatibility
595 Cleaned up compilation warnings in libgraph
598 Continued conversion to ANSI C
599 Removed old CRT routines
602 Renamed pictures to phantoms, objects to phantom elements
603 Continued code cleanup
606 More code cleanup with reorganizing libraries
607 Added --log and --exp to sdf-1
608 Allowed negative numbers for window levels in CGI interface
611 Continued code cleanup
615 Better documented, coded raysum in-memory on on-disk options
618 Cleaned out library that wasn't being used by CTSim
619 Modified ctsim.cgi to read in configuration file ctsim.conf
622 First open source distribution for GNU/Linux
625 Converted to GNU/Linux
626 added MPI support via LAM library
629 Developed under MS-DOS and IBM EGA graphics