1 Oct 5, 2003 Version 4.3.0
3 * Ported to incompatible FFTW3 library. CTSim will no longer compile or run with FFTW2.
4 * Save FFTW3 in $HOME/.fftw3-wisdom on platforms where getenv function is available
6 Oct 3, 2003 Version 4.2.7
8 * Add support for building on RedHat AMD64
10 Sep 30, 2003 Version 4.2.7
12 * Fix minor issue with floating point difference backprojection, add
15 * Fix building with newest versions of automake 1.7
17 * Add support for 8-byte longs [for example, Athlon64] in
18 integer difference backprojection allowing for 64-bit integer
21 Mar 22, 2003 Version 4.2.3
23 * Added Fourier reconstruction method
25 * Support gcc 3.2, wxWindows 2.4, and MacOS X
27 * Fix polar interpolation
29 Jun 26, 2002 Version 3.5.6
31 * Fix minor color PNG image importing bug
33 * Bug fix for building on Debian alpha platform
35 * Fix g++ compilation warnings
37 Jun 13, 2002 Version 3.5.5
39 * Fix printing of version number
43 * Updated Win32 compatibility
45 Jun 8, 2002 Version 3.5.4
47 * Print version number in log window with About command
49 * Fix problem with captions not showing on some windows. Reworked
50 creation of new windows.
52 * Disabled status bar on 3d views
54 * Fix bug in configure.ac that prevented using compiler
57 * Updated About splash screen
59 May 29, 2002 Version 3.5.3
60 * Added support for g++ 3.04 compiler
62 May 8, 2002 Version 3.5.2
63 * configure: improved CTN (DICOM) installation search
64 * src/ctsim.cpp: Fixed initial image size with import command
66 May 5, 2002 Version 3.5.1
70 * ctsim: Added tips to be displayed at startup and via the help menu.
71 * ctsim: Added center-detector concept. Allow for detector array
72 to be any arbitrary distance from center of scanner. As a result,
73 projection files are not incompatible with previous version of
75 * ctsim: Added threaded tasks and background manager for
76 background processing as well as taking advantage of multiple-CPU's
77 on SMP systems. (Microsoft Windows only)
78 * ctsim: Added plot t-theta sampling to projection file menu.
79 * ctsim: Added Reconstruction with Rebinning for faster
80 divergent beam reconstructions.
81 * ctsim: Added import and export of DICOM image files.
82 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
83 * ctsim: Added FFT/IFFT of columns of image files.
84 * ctsim: Added clipboard cut/copy/paste for image files.
85 * ctsim: Added region of interest to reconstructions.
86 * ctsim: Added Convert Rectangular Image to Projection files
87 * ctsim: Added "Verbose Logging", "Startup Tips", and
88 "Background processes" options to Preferences dialog.
89 * ctsim: Added plotting of projection file histograms.
90 * plotfile: Added scattergram plot functions
91 * ctsim: Added accelerator key for File-Properties
92 * ctsim: Improved wireframe 3-d display to remove hidden
94 * backprojectors.cpp: Added setting of axis extent and increment
96 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
97 projection data files.
101 * views.cpp: reduced calls to progress bar update, significant speedup
102 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
103 not being displayed on Unix platforms.
104 * views.cpp: Added out-of-memory checks to display for huge
105 image and projection files.
106 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
107 * imagefile.cpp: Fixed scaling factor in fftRows
108 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
110 * sgp.cpp: Fixed bug in drawCircle.
111 * distribution: fixed problem with documentation files not
112 being included with the distribution (Reported by Ian Kay).
113 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
114 * fixed ctsimtext shell when giving no parameters to function-name
115 * phm2if, phm2pj: Updated help messages for renamed phantoms
117 3.0.3 - Released 2/20/01
119 * ctsim: Fixed core dump on Linux with OpenGL
121 * ctsim: Fixed context-sensitive help on Linux
123 * ctsim: Fixed About box on Linux
125 3.0.2 - Released 2/20/01
127 * scanner.cpp: Fixed bug when number of detectors was even.
129 * ctsim: Improved error handling when trying to convert
130 divergent projections into polar form.
132 3.0.1 - Released 2/19/01
134 * ctsim: Fixed dialog box for reconstruction so that
135 rotation angle setting will stay fixed in-between use
138 * syserror: Fixed display bug for trace messages
140 * ctsim: MSVC optimization bug work-around, compiler
143 3.0.0 - Released 2/19/01
145 * ctsim: Massive update/fix to online help and print manual.
147 * ctsim: Added context-sensitive help to dialog boxes
149 * ctsim: Reformated all dialog boxes, much nicer now.
151 * ctsim: Improved accelerator key handling
153 * global: Added Hanning filter.
155 * global: Improved default parameters to that all defaults give
158 3.0.0beta1 - Released 2/11/01
160 * ctsim: Added most-recently-used files to File menu with
161 registry storage between executions.
163 * ctsim: Hides arcane features unless enabled by Preferences dialog
165 * ctsim: Added MDI interface for Windows version and made it default for Windows.
167 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
169 * ctsim: Added graphical About box
171 * ctsim: Escape key now removes cursor lines from image file view
173 * ctsim: Added Revert to ImageFile menu
175 * ctsim: Added accelerator (hotkeys) to frames
177 * ctsim: Online help added!
179 * backprojector: Added cubic interpolation
181 * ctsim: Added icons to Frames on X-Window and MS Windows versions
183 * ctsim: Fixed tick-label placement for plots on projection and
184 reconstruction dialogs.
186 * timer.h: Add use of _ftime when compiling on MSVC
188 * global: Projection files are not compatible with previous version
189 due to new scanner definitions.
191 * global: deleted concept of field-of-view and added
192 view ratio and scan ratio concepts.
194 * ctsim: Fixed crash on shutdown bug
196 * pjinfo: Fixed bug when doing --dump and not specifing --endview
198 * phm2pj: Fixed MPI bug with broadcasting of variables
200 * ctsimtext-lam: Changes for first version to compile under lam
203 3.0.0alpha5 - Released 1/12/00
205 * ctsim: Added EZPlotDialog, used by debugging plots in
208 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
209 bug in parsing command-line parameters.
211 * views.cpp: Fixed bug in copying of labels from images to
214 * syserror.cpp: fixed reporting for fatal errors
216 * projections.cpp: fixed MSVC failure with std:: namespace
218 * procsignal.cpp: fixed bug in equiangular reconstructions
219 for frequency/inverse-fourier filtering
221 3.0.0alpha4 - Released 1/09/01
223 * ctsim: Added reset to full-intensity scale menu item
225 * ctsim: Add conversion of projections to polar plot [Thanks to
226 Ian Kay for reference and math hints in polar bilinear scaling]
228 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
231 * ctsim: imagefile labels are now copied to plotfiles
233 * ctsim: Added more analyze menuitems
235 * ctsimtext: First version. All command-line tools are now accessed
236 through this master shell. Has both command-line and interactive
239 * ctsim: Fixed initialization of min/max bug for PlotFiles
241 * ezplot: Cleaned up y-tick label placement
243 * sgp: Added better support for projection/reconstruction animation
245 3.0.0alpha3 - Released 1/02/01
247 * ctsim: Added plotting of histograms
249 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
251 * ezplot.cpp: adjusted xtick label displays for better placement
253 3.0alpha2 - Released 1/02/01
255 * ctsim: All functions of command-line tools are now in graphical ctsim
257 * ctsim: added generation of filter images
259 * ctsim: Added 2-image math functions (mul, add, div, sub)
261 * ctsim: Added export of imagefiles to graphic file formats
263 * ctsim: Added support for scaling imagefiles in new sizes
265 * ctsim: Added ability to save standard phantom definitions as
266 text files suitable for reading.
268 * ctsim: Add labels for image transformations and display of labels
269 when performing properties of images.
271 * processsignal.cpp: Fixed "off by one" bug in
272 shuffleNaturalToFourierOrder when n is even. Moved functions to
275 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
276 image math functions to complex-valued math.
278 * phantom.cpp: Added ability to save phantom files as ASCII text.
280 3.0alpha1 - Released 12/29/00
282 * Added PlotFile class to system, used by if2 and ctsim for row
283 and column plots and comparison plots
285 * ctsim: Added image comparison statistics and image subtraction
287 * ctsim: Added plotting of rows & columns with y-axis scaling
289 * ctsim: Added row and column plot comparisons between two image
292 * ctsim: Added "Process" menu to image file display with math
293 functions. Added 2-dimensional inverse Fourier to math
294 functions. Added support for complex (real/imaginary) images.
296 * mathfuncs.cpp: Reworked statistics algorithm to share between
297 imagefile and plotfile classes.
299 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
300 nsamples > 2. Added generic mage math functions, moved from
301 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
304 * array2dfile.cpp: Added code to support complex (real/imaginary)
307 * if1: Updated to handle error conditions, such as sqrt of a
308 negative number. Converted to use new ImageFile math functions.
310 * if2: Updated to output plot files and use new ImageFile class
313 * if1: Updated to use new ImageFile class math functions
315 * ezplot: Reworked to better store colors/linestyles/symbols with
316 individual curves. Improved display of labels and ticks. Updated
317 to use POL class member variable. Updated to more C++ conventions.
319 * pol: converted to C++ class. Extracted HashTable to separate
322 * sgp: Added linestyle settings
325 First Microsoft Windows GUI version
326 Modifications for Microsoft Visual C++ compilation.
327 Improved pjinfo to output binary headers and view data, useful
328 when manually compiling phantoms that vary during projection
329 process. Thanks to Ian Kay for idea and code submission.
330 Improved sorting to find median in ImageFile::statistics
331 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
332 Changed reconstruction dialog to fix onto smaller screens
333 Fixed display of plotting in Projection views
334 Improved animation displays for Projections and Reconstructions
335 Changed code to explicitly use std:: namespace rather than
336 "namespace using std" statements
337 Fixed reconstruction scaling bug introduced in 2.0.6
338 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
341 Fixed minor compilation problem with procsignal.h
343 Fixed bug when simulating projections and Trace == CONSOLE
344 Fixed scaling bug when performing redundant rotations around object
347 Improved compilation on RedHat 7
348 Changed some of ANSI C header files to C++ header files
349 Removed README.RedHat7
352 Added documentation for --geometry setting
353 Added README.RedHat7 document
356 Fixed bug in generation of binary PGM files
357 Fixed MPI compilation bug in phm2pj.cpp
358 Inverted y-axis output for pj2if (bug alert from Ian Kay)
361 Additions to man pages (Ian Kay)
362 Fix problem with reading of ASCII phantom files (Ian Kay)
365 Fixed syntax error in fftw configuration
366 Slight modifications to support gcc v2.9.6
369 Version 2.0.0 released!
370 ctsim: Added Window menu to Main frame
371 ctsim: Disabled not support reconstruction method
372 Fixed obscure bug in sys_error
373 Fixed compilation in mingw environment not present
374 Fixed compilation in non-graphical environments
377 ctsim: Added animation of reconstruction
378 ctsim: Added saving of dialog parameters for Projection & Reconstruction
379 ctsim: Added progress dialog for rasterization of phantom
380 ctsim: used setpriority to set lower priority
381 ctsim: fixed pReconstruct not being deleted causing scaling problem
382 ctsim: fixed projection animation dialog buttons
385 ctsim: Added projection graph to animation of projection collection
386 ctsim: Added single stepping to projection collection animation
387 ctsim: improved File/Properties display for projection files
388 ctsim: Added progress dialog for reconstructions
389 ctsim: Added file labels for projection and reconstruction images
390 ctsim: Made File/Properties bring up modal dialogs
391 Added reconstruction for Equilinear and Equiangular geometries
392 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
393 Separated reconstruction into Reconstructor class
394 Fixed center of detector adjustment for even number of detectors
395 Added --enable-static to generate statically linked programs
398 ctsim: Added animation of projection collection processs
399 ctsim: Added Auto Scaling for image windows
400 ctsim: Change menus from "windowing" to "display scaling"
401 Added FieldOfView and FocalLength ratio parameters to projection collection
402 Added FocalLength & FieldOfView fields to projection data files
403 Added Projection collection for Equilinear and Equiangular geometries
404 Changed name of Rowland Phantom to correct name of Shepp-Logan
405 Fixed bug in backprojection selection
408 Added RCS Id strings to executable files
409 Added RPM Spec file for RPM package creation
410 Added loading of ASCII phanthom definitions from files
411 Fixed compilation for non-SGP architectures
412 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
413 Added Filter-Generation option to reconstruction to allow direct or
414 inverse_fourier construction of filters
415 Added median to statistics and to auto-windowing
418 Added line color support to SGP
422 Finished support for dmallocxx library
423 Fixed bug in SignalFilter::convertFilterMethodNameToID()
424 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
425 G2 windows and well as WXWindows.
426 ctsim program: "Create Phantom" now shows phantom object
427 Fixed row-plot bug in if-2
428 Reworked EZPlot's multiple plot operation
431 ctsim program: improved initial size and scroll area for image
433 ctsim program: added rasterization parameters, projections parameters,
434 and reconstruction parameters dialogs
435 Moved char[] static definition from header files to c++ files
436 Completely reorganized option processing in classes to improve
437 expandability and to assist ctsim graphical user interface.
440 ctsim program: Added dialog to set minimum/maximum display levels
441 Started ctsim.tex document file
444 Fixed compiler warnings at -Wall level
445 Began work on CTSim program to be graphical front-end of all functions
446 Moved current src/*.cpp to tools/*.cpp
447 Made CTSim graphical front-end's home to be src/
450 Added highly optimized backprojection method idiff3
451 Moved comparative stats to if-2 program from ifinfo
452 Fixed image display in if2img using G2 library
453 Added column-plot and row-plot options to if-2
454 Added autoselection of analytic/calculated spatial responses to SignalFilter
455 Added frequency-based preinterpolation to SignalFilter and idiff3
456 backprojection method. Currently, this technique is still under
457 development and debugging
458 Moved graphic file writing to ImageFile class from if2img program
461 Cleaned up SignalFilter class
462 Added zeropad option to pjrec
463 Added zeropad options to html and cgi files
464 Added fourier_table and rfttw filter methods
465 Added FFTW routines to use real/half-complex transformations
468 Updated trace level processing
469 Added trace level to SignalFilter
470 Fixed magnitude vs. real output bug in FFT/Fourier filter
473 Fixed const issue with ImageFileArray
474 Fixed Array2dFile::labelsCopy()
475 Added copy constructor and assignment for Array2dFileLabel class
476 Added Timer to if-2.cpp and ifinfo.cpp
477 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
478 Added option processing for filter-method for pjrec to choose
479 between convolution, dft, & fft filtering
480 Fixed format string for EZPlot so axis labels now print
481 Added support for FFTW library
484 Rewrote Array2dFile class to be non-templated
485 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
486 Rewrote Array2dFileLabel class to make members private, added access routines
487 Removed timedate.cpp in favor of standard C library time/date functions
488 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
489 Added signature tag and creation date/time to projection files
492 Standardized string option processing by classes. All classes use character strings
493 to select options rather than numeric constants. Added fail() and failMessage()
494 methods to verify that objects are created correctly by character strings.
495 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
496 Rewrote ImageFile class
497 Started support for dmallocxx library, not finished
498 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
499 Updated ifinfo to show comparative statistics
500 Added printLabels() to Array2dFile class
501 Added printStatistics() to ImageFile class
504 Moved conversion filter name/id to Filter class
505 Moved conversion backprojection name/id to Backproj class
506 Added MPI broadcasting of strings
509 Merged proj_reconstr into class Projections
510 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
511 Code cleanup in projections.cpp
512 Moved conversion of phantom names/id to Phantom class
515 Converted projection files to C++ library with frnetorderstream
516 Converted image files to C++ library with frnetorderstream
517 Converted filter and convolution to object-oriented code
518 Changed default image file to float from double -- Changable in imagefile.h
519 Optimized image file writing on little-endian architectures
520 Updated README and INSTALL
523 Reorganized source files
524 MPI bug fixed to phm2pj.cpp
527 Reorganized include files
528 Fixed const pointers in strfuncs
531 Renamed directories, moved source files, combined source files
532 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
536 Skip versions to make version 2.0 the first fully C++ version
537 Renamed Raysums to Projections throughout files
538 Renamed Detector to Scanner
539 Converted Scanner and Projecions to full object-oriented
542 Converted Phantom and PhantomElements to Object-Oriented
543 Converted Detector to Object-Oriented
546 Improved Integer backprojection method
547 Fixed nearest neighbor to be truly nearest neighbor
548 Made linear interpolation more integer arithmetic -> speed improvement
549 Finished converting all C files to C++
550 Converted all use of malloc/free to C++ new/delete
551 Began object-oriented conversion of Phantom and Projection structures
554 Converted MPI data structures to C++ object
555 Made ImageFile directly inherit from Array2dFile
558 First C++ conversions
559 Portable IF (image file) format implemented with objects (SDF removed)
560 - Now all data files are cross-platform compatible
561 Converted from MPI to MPI++
562 Converted backprojection to object-oriented
563 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
566 Simpilifed endian handling
569 Added support for 64-bit (IA64) CPU
570 Removed broken B-spline interpolation
571 Added support for cygwin platform under Windows 2000
572 Added support for 16-bit PNG graphics
575 Added compile-time configuration of endian order
578 Modified the raysum file format to be platform independent
581 Added Microsoft VC compatibility
582 Cleaned up compilation warnings in libgraph
585 Continued conversion to ANSI C
586 Removed old CRT routines
589 Renamed pictures to phantoms, objects to phantom elements
590 Continued code cleanup
593 More code cleanup with reorganizing libraries
594 Added --log and --exp to sdf-1
595 Allowed negative numbers for window levels in CGI interface
598 Continued code cleanup
602 Better documented, coded raysum in-memory on on-disk options
605 Cleaned out library that wasn't being used by CTSim
606 Modified ctsim.cgi to read in configuration file ctsim.conf
609 First open source distribution for GNU/Linux
612 Converted to GNU/Linux
613 added MPI support via LAM library
616 Developed under MS-DOS and IBM EGA graphics