1 Mar 16, 2006 Version 4.4.4
2 * Changes for g++ 4.1 support
4 Aug 22, 2005 Version 4.4.2
5 * New URL for downloading CTSim
7 Aug 22, 2005 Version 4.4.1
8 * work-around for compilation problems on Fedora 4 and wxWin 2.4.2
10 Aug 22, 2005 Version 4.4.0
11 * Changes in configure.ac for X.org compatibility with Debian Etch
12 and FC4. May not be backward compatibility with XFree86.
14 Aug 10, 2004 Version 4.3.2, Version 4.3.3
15 * Minor changes in man pages to fix groff warnings
17 Nov 1, 2003 Version 4.3.1
18 * Add support for SuSE AMD64
20 Oct 5, 2003 Version 4.3.0
21 * Ported to incompatible FFTW3 library. CTSim will no longer compile or run with FFTW2.
22 * Save FFTW3 in $HOME/.fftw3-wisdom on platforms where getenv function is available
24 Oct 3, 2003 Version 4.2.7
25 * Add support for building on RedHat AMD64
27 Sep 30, 2003 Version 4.2.7
28 * Fix minor issue with floating point difference backprojection, add
31 * Fix building with newest versions of automake 1.7
33 * Add support for 8-byte longs [for example, Athlon64] in
34 integer difference backprojection allowing for 64-bit integer
37 Mar 22, 2003 Version 4.2.3
39 * Added Fourier reconstruction method
41 * Support gcc 3.2, wxWindows 2.4, and MacOS X
43 * Fix polar interpolation
45 Jun 26, 2002 Version 3.5.6
47 * Fix minor color PNG image importing bug
49 * Bug fix for building on Debian alpha platform
51 * Fix g++ compilation warnings
53 Jun 13, 2002 Version 3.5.5
55 * Fix printing of version number
59 * Updated Win32 compatibility
61 Jun 8, 2002 Version 3.5.4
63 * Print version number in log window with About command
65 * Fix problem with captions not showing on some windows. Reworked
66 creation of new windows.
68 * Disabled status bar on 3d views
70 * Fix bug in configure.ac that prevented using compiler
73 * Updated About splash screen
75 May 29, 2002 Version 3.5.3
76 * Added support for g++ 3.04 compiler
78 May 8, 2002 Version 3.5.2
79 * configure: improved CTN (DICOM) installation search
80 * src/ctsim.cpp: Fixed initial image size with import command
82 May 5, 2002 Version 3.5.1
86 * ctsim: Added tips to be displayed at startup and via the help menu.
87 * ctsim: Added center-detector concept. Allow for detector array
88 to be any arbitrary distance from center of scanner. As a result,
89 projection files are not incompatible with previous version of
91 * ctsim: Added threaded tasks and background manager for
92 background processing as well as taking advantage of multiple-CPU's
93 on SMP systems. (Microsoft Windows only)
94 * ctsim: Added plot t-theta sampling to projection file menu.
95 * ctsim: Added Reconstruction with Rebinning for faster
96 divergent beam reconstructions.
97 * ctsim: Added import and export of DICOM image files.
98 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
99 * ctsim: Added FFT/IFFT of columns of image files.
100 * ctsim: Added clipboard cut/copy/paste for image files.
101 * ctsim: Added region of interest to reconstructions.
102 * ctsim: Added Convert Rectangular Image to Projection files
103 * ctsim: Added "Verbose Logging", "Startup Tips", and
104 "Background processes" options to Preferences dialog.
105 * ctsim: Added plotting of projection file histograms.
106 * plotfile: Added scattergram plot functions
107 * ctsim: Added accelerator key for File-Properties
108 * ctsim: Improved wireframe 3-d display to remove hidden
110 * backprojectors.cpp: Added setting of axis extent and increment
112 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
113 projection data files.
117 * views.cpp: reduced calls to progress bar update, significant speedup
118 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
119 not being displayed on Unix platforms.
120 * views.cpp: Added out-of-memory checks to display for huge
121 image and projection files.
122 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
123 * imagefile.cpp: Fixed scaling factor in fftRows
124 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
126 * sgp.cpp: Fixed bug in drawCircle.
127 * distribution: fixed problem with documentation files not
128 being included with the distribution (Reported by Ian Kay).
129 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
130 * fixed ctsimtext shell when giving no parameters to function-name
131 * phm2if, phm2pj: Updated help messages for renamed phantoms
133 3.0.3 - Released 2/20/01
135 * ctsim: Fixed core dump on Linux with OpenGL
137 * ctsim: Fixed context-sensitive help on Linux
139 * ctsim: Fixed About box on Linux
141 3.0.2 - Released 2/20/01
143 * scanner.cpp: Fixed bug when number of detectors was even.
145 * ctsim: Improved error handling when trying to convert
146 divergent projections into polar form.
148 3.0.1 - Released 2/19/01
150 * ctsim: Fixed dialog box for reconstruction so that
151 rotation angle setting will stay fixed in-between use
154 * syserror: Fixed display bug for trace messages
156 * ctsim: MSVC optimization bug work-around, compiler
159 3.0.0 - Released 2/19/01
161 * ctsim: Massive update/fix to online help and print manual.
163 * ctsim: Added context-sensitive help to dialog boxes
165 * ctsim: Reformated all dialog boxes, much nicer now.
167 * ctsim: Improved accelerator key handling
169 * global: Added Hanning filter.
171 * global: Improved default parameters to that all defaults give
174 3.0.0beta1 - Released 2/11/01
176 * ctsim: Added most-recently-used files to File menu with
177 registry storage between executions.
179 * ctsim: Hides arcane features unless enabled by Preferences dialog
181 * ctsim: Added MDI interface for Windows version and made it default for Windows.
183 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
185 * ctsim: Added graphical About box
187 * ctsim: Escape key now removes cursor lines from image file view
189 * ctsim: Added Revert to ImageFile menu
191 * ctsim: Added accelerator (hotkeys) to frames
193 * ctsim: Online help added!
195 * backprojector: Added cubic interpolation
197 * ctsim: Added icons to Frames on X-Window and MS Windows versions
199 * ctsim: Fixed tick-label placement for plots on projection and
200 reconstruction dialogs.
202 * timer.h: Add use of _ftime when compiling on MSVC
204 * global: Projection files are not compatible with previous version
205 due to new scanner definitions.
207 * global: deleted concept of field-of-view and added
208 view ratio and scan ratio concepts.
210 * ctsim: Fixed crash on shutdown bug
212 * pjinfo: Fixed bug when doing --dump and not specifing --endview
214 * phm2pj: Fixed MPI bug with broadcasting of variables
216 * ctsimtext-lam: Changes for first version to compile under lam
219 3.0.0alpha5 - Released 1/12/00
221 * ctsim: Added EZPlotDialog, used by debugging plots in
224 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
225 bug in parsing command-line parameters.
227 * views.cpp: Fixed bug in copying of labels from images to
230 * syserror.cpp: fixed reporting for fatal errors
232 * projections.cpp: fixed MSVC failure with std:: namespace
234 * procsignal.cpp: fixed bug in equiangular reconstructions
235 for frequency/inverse-fourier filtering
237 3.0.0alpha4 - Released 1/09/01
239 * ctsim: Added reset to full-intensity scale menu item
241 * ctsim: Add conversion of projections to polar plot [Thanks to
242 Ian Kay for reference and math hints in polar bilinear scaling]
244 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
247 * ctsim: imagefile labels are now copied to plotfiles
249 * ctsim: Added more analyze menuitems
251 * ctsimtext: First version. All command-line tools are now accessed
252 through this master shell. Has both command-line and interactive
255 * ctsim: Fixed initialization of min/max bug for PlotFiles
257 * ezplot: Cleaned up y-tick label placement
259 * sgp: Added better support for projection/reconstruction animation
261 3.0.0alpha3 - Released 1/02/01
263 * ctsim: Added plotting of histograms
265 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
267 * ezplot.cpp: adjusted xtick label displays for better placement
269 3.0alpha2 - Released 1/02/01
271 * ctsim: All functions of command-line tools are now in graphical ctsim
273 * ctsim: added generation of filter images
275 * ctsim: Added 2-image math functions (mul, add, div, sub)
277 * ctsim: Added export of imagefiles to graphic file formats
279 * ctsim: Added support for scaling imagefiles in new sizes
281 * ctsim: Added ability to save standard phantom definitions as
282 text files suitable for reading.
284 * ctsim: Add labels for image transformations and display of labels
285 when performing properties of images.
287 * processsignal.cpp: Fixed "off by one" bug in
288 shuffleNaturalToFourierOrder when n is even. Moved functions to
291 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
292 image math functions to complex-valued math.
294 * phantom.cpp: Added ability to save phantom files as ASCII text.
296 3.0alpha1 - Released 12/29/00
298 * Added PlotFile class to system, used by if2 and ctsim for row
299 and column plots and comparison plots
301 * ctsim: Added image comparison statistics and image subtraction
303 * ctsim: Added plotting of rows & columns with y-axis scaling
305 * ctsim: Added row and column plot comparisons between two image
308 * ctsim: Added "Process" menu to image file display with math
309 functions. Added 2-dimensional inverse Fourier to math
310 functions. Added support for complex (real/imaginary) images.
312 * mathfuncs.cpp: Reworked statistics algorithm to share between
313 imagefile and plotfile classes.
315 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
316 nsamples > 2. Added generic mage math functions, moved from
317 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
320 * array2dfile.cpp: Added code to support complex (real/imaginary)
323 * if1: Updated to handle error conditions, such as sqrt of a
324 negative number. Converted to use new ImageFile math functions.
326 * if2: Updated to output plot files and use new ImageFile class
329 * if1: Updated to use new ImageFile class math functions
331 * ezplot: Reworked to better store colors/linestyles/symbols with
332 individual curves. Improved display of labels and ticks. Updated
333 to use POL class member variable. Updated to more C++ conventions.
335 * pol: converted to C++ class. Extracted HashTable to separate
338 * sgp: Added linestyle settings
341 First Microsoft Windows GUI version
342 Modifications for Microsoft Visual C++ compilation.
343 Improved pjinfo to output binary headers and view data, useful
344 when manually compiling phantoms that vary during projection
345 process. Thanks to Ian Kay for idea and code submission.
346 Improved sorting to find median in ImageFile::statistics
347 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
348 Changed reconstruction dialog to fix onto smaller screens
349 Fixed display of plotting in Projection views
350 Improved animation displays for Projections and Reconstructions
351 Changed code to explicitly use std:: namespace rather than
352 "namespace using std" statements
353 Fixed reconstruction scaling bug introduced in 2.0.6
354 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
357 Fixed minor compilation problem with procsignal.h
359 Fixed bug when simulating projections and Trace == CONSOLE
360 Fixed scaling bug when performing redundant rotations around object
363 Improved compilation on RedHat 7
364 Changed some of ANSI C header files to C++ header files
365 Removed README.RedHat7
368 Added documentation for --geometry setting
369 Added README.RedHat7 document
372 Fixed bug in generation of binary PGM files
373 Fixed MPI compilation bug in phm2pj.cpp
374 Inverted y-axis output for pj2if (bug alert from Ian Kay)
377 Additions to man pages (Ian Kay)
378 Fix problem with reading of ASCII phantom files (Ian Kay)
381 Fixed syntax error in fftw configuration
382 Slight modifications to support gcc v2.9.6
385 Version 2.0.0 released!
386 ctsim: Added Window menu to Main frame
387 ctsim: Disabled not support reconstruction method
388 Fixed obscure bug in sys_error
389 Fixed compilation in mingw environment not present
390 Fixed compilation in non-graphical environments
393 ctsim: Added animation of reconstruction
394 ctsim: Added saving of dialog parameters for Projection & Reconstruction
395 ctsim: Added progress dialog for rasterization of phantom
396 ctsim: used setpriority to set lower priority
397 ctsim: fixed pReconstruct not being deleted causing scaling problem
398 ctsim: fixed projection animation dialog buttons
401 ctsim: Added projection graph to animation of projection collection
402 ctsim: Added single stepping to projection collection animation
403 ctsim: improved File/Properties display for projection files
404 ctsim: Added progress dialog for reconstructions
405 ctsim: Added file labels for projection and reconstruction images
406 ctsim: Made File/Properties bring up modal dialogs
407 Added reconstruction for Equilinear and Equiangular geometries
408 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
409 Separated reconstruction into Reconstructor class
410 Fixed center of detector adjustment for even number of detectors
411 Added --enable-static to generate statically linked programs
414 ctsim: Added animation of projection collection processs
415 ctsim: Added Auto Scaling for image windows
416 ctsim: Change menus from "windowing" to "display scaling"
417 Added FieldOfView and FocalLength ratio parameters to projection collection
418 Added FocalLength & FieldOfView fields to projection data files
419 Added Projection collection for Equilinear and Equiangular geometries
420 Changed name of Rowland Phantom to correct name of Shepp-Logan
421 Fixed bug in backprojection selection
424 Added RCS Id strings to executable files
425 Added RPM Spec file for RPM package creation
426 Added loading of ASCII phanthom definitions from files
427 Fixed compilation for non-SGP architectures
428 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
429 Added Filter-Generation option to reconstruction to allow direct or
430 inverse_fourier construction of filters
431 Added median to statistics and to auto-windowing
434 Added line color support to SGP
438 Finished support for dmallocxx library
439 Fixed bug in SignalFilter::convertFilterMethodNameToID()
440 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
441 G2 windows and well as WXWindows.
442 ctsim program: "Create Phantom" now shows phantom object
443 Fixed row-plot bug in if-2
444 Reworked EZPlot's multiple plot operation
447 ctsim program: improved initial size and scroll area for image
449 ctsim program: added rasterization parameters, projections parameters,
450 and reconstruction parameters dialogs
451 Moved char[] static definition from header files to c++ files
452 Completely reorganized option processing in classes to improve
453 expandability and to assist ctsim graphical user interface.
456 ctsim program: Added dialog to set minimum/maximum display levels
457 Started ctsim.tex document file
460 Fixed compiler warnings at -Wall level
461 Began work on CTSim program to be graphical front-end of all functions
462 Moved current src/*.cpp to tools/*.cpp
463 Made CTSim graphical front-end's home to be src/
466 Added highly optimized backprojection method idiff3
467 Moved comparative stats to if-2 program from ifinfo
468 Fixed image display in if2img using G2 library
469 Added column-plot and row-plot options to if-2
470 Added autoselection of analytic/calculated spatial responses to SignalFilter
471 Added frequency-based preinterpolation to SignalFilter and idiff3
472 backprojection method. Currently, this technique is still under
473 development and debugging
474 Moved graphic file writing to ImageFile class from if2img program
477 Cleaned up SignalFilter class
478 Added zeropad option to pjrec
479 Added zeropad options to html and cgi files
480 Added fourier_table and rfttw filter methods
481 Added FFTW routines to use real/half-complex transformations
484 Updated trace level processing
485 Added trace level to SignalFilter
486 Fixed magnitude vs. real output bug in FFT/Fourier filter
489 Fixed const issue with ImageFileArray
490 Fixed Array2dFile::labelsCopy()
491 Added copy constructor and assignment for Array2dFileLabel class
492 Added Timer to if-2.cpp and ifinfo.cpp
493 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
494 Added option processing for filter-method for pjrec to choose
495 between convolution, dft, & fft filtering
496 Fixed format string for EZPlot so axis labels now print
497 Added support for FFTW library
500 Rewrote Array2dFile class to be non-templated
501 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
502 Rewrote Array2dFileLabel class to make members private, added access routines
503 Removed timedate.cpp in favor of standard C library time/date functions
504 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
505 Added signature tag and creation date/time to projection files
508 Standardized string option processing by classes. All classes use character strings
509 to select options rather than numeric constants. Added fail() and failMessage()
510 methods to verify that objects are created correctly by character strings.
511 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
512 Rewrote ImageFile class
513 Started support for dmallocxx library, not finished
514 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
515 Updated ifinfo to show comparative statistics
516 Added printLabels() to Array2dFile class
517 Added printStatistics() to ImageFile class
520 Moved conversion filter name/id to Filter class
521 Moved conversion backprojection name/id to Backproj class
522 Added MPI broadcasting of strings
525 Merged proj_reconstr into class Projections
526 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
527 Code cleanup in projections.cpp
528 Moved conversion of phantom names/id to Phantom class
531 Converted projection files to C++ library with frnetorderstream
532 Converted image files to C++ library with frnetorderstream
533 Converted filter and convolution to object-oriented code
534 Changed default image file to float from double -- Changable in imagefile.h
535 Optimized image file writing on little-endian architectures
536 Updated README and INSTALL
539 Reorganized source files
540 MPI bug fixed to phm2pj.cpp
543 Reorganized include files
544 Fixed const pointers in strfuncs
547 Renamed directories, moved source files, combined source files
548 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
552 Skip versions to make version 2.0 the first fully C++ version
553 Renamed Raysums to Projections throughout files
554 Renamed Detector to Scanner
555 Converted Scanner and Projecions to full object-oriented
558 Converted Phantom and PhantomElements to Object-Oriented
559 Converted Detector to Object-Oriented
562 Improved Integer backprojection method
563 Fixed nearest neighbor to be truly nearest neighbor
564 Made linear interpolation more integer arithmetic -> speed improvement
565 Finished converting all C files to C++
566 Converted all use of malloc/free to C++ new/delete
567 Began object-oriented conversion of Phantom and Projection structures
570 Converted MPI data structures to C++ object
571 Made ImageFile directly inherit from Array2dFile
574 First C++ conversions
575 Portable IF (image file) format implemented with objects (SDF removed)
576 - Now all data files are cross-platform compatible
577 Converted from MPI to MPI++
578 Converted backprojection to object-oriented
579 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
582 Simpilifed endian handling
585 Added support for 64-bit (IA64) CPU
586 Removed broken B-spline interpolation
587 Added support for cygwin platform under Windows 2000
588 Added support for 16-bit PNG graphics
591 Added compile-time configuration of endian order
594 Modified the raysum file format to be platform independent
597 Added Microsoft VC compatibility
598 Cleaned up compilation warnings in libgraph
601 Continued conversion to ANSI C
602 Removed old CRT routines
605 Renamed pictures to phantoms, objects to phantom elements
606 Continued code cleanup
609 More code cleanup with reorganizing libraries
610 Added --log and --exp to sdf-1
611 Allowed negative numbers for window levels in CGI interface
614 Continued code cleanup
618 Better documented, coded raysum in-memory on on-disk options
621 Cleaned out library that wasn't being used by CTSim
622 Modified ctsim.cgi to read in configuration file ctsim.conf
625 First open source distribution for GNU/Linux
628 Converted to GNU/Linux
629 added MPI support via LAM library
632 Developed under MS-DOS and IBM EGA graphics