1 Oct 15, 2006 Version 4.5.0
2 * libctsim/backprojectors.cpp: Fix for iteration bug in backprojection
3 and simply computing rotScale -- thanks to Dan Martin.
5 Mar 16, 2006 Version 4.4.4
6 * Changes for g++ 4.1 support
8 Aug 22, 2005 Version 4.4.2
9 * New URL for downloading CTSim
11 Aug 22, 2005 Version 4.4.1
12 * work-around for compilation problems on Fedora 4 and wxWin 2.4.2
14 Aug 22, 2005 Version 4.4.0
15 * Changes in configure.ac for X.org compatibility with Debian Etch
16 and FC4. May not be backward compatibility with XFree86.
18 Aug 10, 2004 Version 4.3.2, Version 4.3.3
19 * Minor changes in man pages to fix groff warnings
21 Nov 1, 2003 Version 4.3.1
22 * Add support for SuSE AMD64
24 Oct 5, 2003 Version 4.3.0
25 * Ported to incompatible FFTW3 library. CTSim will no longer compile or run with FFTW2.
26 * Save FFTW3 in $HOME/.fftw3-wisdom on platforms where getenv function is available
28 Oct 3, 2003 Version 4.2.7
29 * Add support for building on RedHat AMD64
31 Sep 30, 2003 Version 4.2.7
32 * Fix minor issue with floating point difference backprojection, add
35 * Fix building with newest versions of automake 1.7
37 * Add support for 8-byte longs [for example, Athlon64] in
38 integer difference backprojection allowing for 64-bit integer
41 Mar 22, 2003 Version 4.2.3
43 * Added Fourier reconstruction method
45 * Support gcc 3.2, wxWindows 2.4, and MacOS X
47 * Fix polar interpolation
49 Jun 26, 2002 Version 3.5.6
51 * Fix minor color PNG image importing bug
53 * Bug fix for building on Debian alpha platform
55 * Fix g++ compilation warnings
57 Jun 13, 2002 Version 3.5.5
59 * Fix printing of version number
63 * Updated Win32 compatibility
65 Jun 8, 2002 Version 3.5.4
67 * Print version number in log window with About command
69 * Fix problem with captions not showing on some windows. Reworked
70 creation of new windows.
72 * Disabled status bar on 3d views
74 * Fix bug in configure.ac that prevented using compiler
77 * Updated About splash screen
79 May 29, 2002 Version 3.5.3
80 * Added support for g++ 3.04 compiler
82 May 8, 2002 Version 3.5.2
83 * configure: improved CTN (DICOM) installation search
84 * src/ctsim.cpp: Fixed initial image size with import command
86 May 5, 2002 Version 3.5.1
90 * ctsim: Added tips to be displayed at startup and via the help menu.
91 * ctsim: Added center-detector concept. Allow for detector array
92 to be any arbitrary distance from center of scanner. As a result,
93 projection files are not incompatible with previous version of
95 * ctsim: Added threaded tasks and background manager for
96 background processing as well as taking advantage of multiple-CPU's
97 on SMP systems. (Microsoft Windows only)
98 * ctsim: Added plot t-theta sampling to projection file menu.
99 * ctsim: Added Reconstruction with Rebinning for faster
100 divergent beam reconstructions.
101 * ctsim: Added import and export of DICOM image files.
102 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
103 * ctsim: Added FFT/IFFT of columns of image files.
104 * ctsim: Added clipboard cut/copy/paste for image files.
105 * ctsim: Added region of interest to reconstructions.
106 * ctsim: Added Convert Rectangular Image to Projection files
107 * ctsim: Added "Verbose Logging", "Startup Tips", and
108 "Background processes" options to Preferences dialog.
109 * ctsim: Added plotting of projection file histograms.
110 * plotfile: Added scattergram plot functions
111 * ctsim: Added accelerator key for File-Properties
112 * ctsim: Improved wireframe 3-d display to remove hidden
114 * backprojectors.cpp: Added setting of axis extent and increment
116 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
117 projection data files.
121 * views.cpp: reduced calls to progress bar update, significant speedup
122 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
123 not being displayed on Unix platforms.
124 * views.cpp: Added out-of-memory checks to display for huge
125 image and projection files.
126 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
127 * imagefile.cpp: Fixed scaling factor in fftRows
128 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
130 * sgp.cpp: Fixed bug in drawCircle.
131 * distribution: fixed problem with documentation files not
132 being included with the distribution (Reported by Ian Kay).
133 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
134 * fixed ctsimtext shell when giving no parameters to function-name
135 * phm2if, phm2pj: Updated help messages for renamed phantoms
137 3.0.3 - Released 2/20/01
139 * ctsim: Fixed core dump on Linux with OpenGL
141 * ctsim: Fixed context-sensitive help on Linux
143 * ctsim: Fixed About box on Linux
145 3.0.2 - Released 2/20/01
147 * scanner.cpp: Fixed bug when number of detectors was even.
149 * ctsim: Improved error handling when trying to convert
150 divergent projections into polar form.
152 3.0.1 - Released 2/19/01
154 * ctsim: Fixed dialog box for reconstruction so that
155 rotation angle setting will stay fixed in-between use
158 * syserror: Fixed display bug for trace messages
160 * ctsim: MSVC optimization bug work-around, compiler
163 3.0.0 - Released 2/19/01
165 * ctsim: Massive update/fix to online help and print manual.
167 * ctsim: Added context-sensitive help to dialog boxes
169 * ctsim: Reformated all dialog boxes, much nicer now.
171 * ctsim: Improved accelerator key handling
173 * global: Added Hanning filter.
175 * global: Improved default parameters to that all defaults give
178 3.0.0beta1 - Released 2/11/01
180 * ctsim: Added most-recently-used files to File menu with
181 registry storage between executions.
183 * ctsim: Hides arcane features unless enabled by Preferences dialog
185 * ctsim: Added MDI interface for Windows version and made it default for Windows.
187 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
189 * ctsim: Added graphical About box
191 * ctsim: Escape key now removes cursor lines from image file view
193 * ctsim: Added Revert to ImageFile menu
195 * ctsim: Added accelerator (hotkeys) to frames
197 * ctsim: Online help added!
199 * backprojector: Added cubic interpolation
201 * ctsim: Added icons to Frames on X-Window and MS Windows versions
203 * ctsim: Fixed tick-label placement for plots on projection and
204 reconstruction dialogs.
206 * timer.h: Add use of _ftime when compiling on MSVC
208 * global: Projection files are not compatible with previous version
209 due to new scanner definitions.
211 * global: deleted concept of field-of-view and added
212 view ratio and scan ratio concepts.
214 * ctsim: Fixed crash on shutdown bug
216 * pjinfo: Fixed bug when doing --dump and not specifing --endview
218 * phm2pj: Fixed MPI bug with broadcasting of variables
220 * ctsimtext-lam: Changes for first version to compile under lam
223 3.0.0alpha5 - Released 1/12/00
225 * ctsim: Added EZPlotDialog, used by debugging plots in
228 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
229 bug in parsing command-line parameters.
231 * views.cpp: Fixed bug in copying of labels from images to
234 * syserror.cpp: fixed reporting for fatal errors
236 * projections.cpp: fixed MSVC failure with std:: namespace
238 * procsignal.cpp: fixed bug in equiangular reconstructions
239 for frequency/inverse-fourier filtering
241 3.0.0alpha4 - Released 1/09/01
243 * ctsim: Added reset to full-intensity scale menu item
245 * ctsim: Add conversion of projections to polar plot [Thanks to
246 Ian Kay for reference and math hints in polar bilinear scaling]
248 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
251 * ctsim: imagefile labels are now copied to plotfiles
253 * ctsim: Added more analyze menuitems
255 * ctsimtext: First version. All command-line tools are now accessed
256 through this master shell. Has both command-line and interactive
259 * ctsim: Fixed initialization of min/max bug for PlotFiles
261 * ezplot: Cleaned up y-tick label placement
263 * sgp: Added better support for projection/reconstruction animation
265 3.0.0alpha3 - Released 1/02/01
267 * ctsim: Added plotting of histograms
269 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
271 * ezplot.cpp: adjusted xtick label displays for better placement
273 3.0alpha2 - Released 1/02/01
275 * ctsim: All functions of command-line tools are now in graphical ctsim
277 * ctsim: added generation of filter images
279 * ctsim: Added 2-image math functions (mul, add, div, sub)
281 * ctsim: Added export of imagefiles to graphic file formats
283 * ctsim: Added support for scaling imagefiles in new sizes
285 * ctsim: Added ability to save standard phantom definitions as
286 text files suitable for reading.
288 * ctsim: Add labels for image transformations and display of labels
289 when performing properties of images.
291 * processsignal.cpp: Fixed "off by one" bug in
292 shuffleNaturalToFourierOrder when n is even. Moved functions to
295 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
296 image math functions to complex-valued math.
298 * phantom.cpp: Added ability to save phantom files as ASCII text.
300 3.0alpha1 - Released 12/29/00
302 * Added PlotFile class to system, used by if2 and ctsim for row
303 and column plots and comparison plots
305 * ctsim: Added image comparison statistics and image subtraction
307 * ctsim: Added plotting of rows & columns with y-axis scaling
309 * ctsim: Added row and column plot comparisons between two image
312 * ctsim: Added "Process" menu to image file display with math
313 functions. Added 2-dimensional inverse Fourier to math
314 functions. Added support for complex (real/imaginary) images.
316 * mathfuncs.cpp: Reworked statistics algorithm to share between
317 imagefile and plotfile classes.
319 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
320 nsamples > 2. Added generic mage math functions, moved from
321 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
324 * array2dfile.cpp: Added code to support complex (real/imaginary)
327 * if1: Updated to handle error conditions, such as sqrt of a
328 negative number. Converted to use new ImageFile math functions.
330 * if2: Updated to output plot files and use new ImageFile class
333 * if1: Updated to use new ImageFile class math functions
335 * ezplot: Reworked to better store colors/linestyles/symbols with
336 individual curves. Improved display of labels and ticks. Updated
337 to use POL class member variable. Updated to more C++ conventions.
339 * pol: converted to C++ class. Extracted HashTable to separate
342 * sgp: Added linestyle settings
345 First Microsoft Windows GUI version
346 Modifications for Microsoft Visual C++ compilation.
347 Improved pjinfo to output binary headers and view data, useful
348 when manually compiling phantoms that vary during projection
349 process. Thanks to Ian Kay for idea and code submission.
350 Improved sorting to find median in ImageFile::statistics
351 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
352 Changed reconstruction dialog to fix onto smaller screens
353 Fixed display of plotting in Projection views
354 Improved animation displays for Projections and Reconstructions
355 Changed code to explicitly use std:: namespace rather than
356 "namespace using std" statements
357 Fixed reconstruction scaling bug introduced in 2.0.6
358 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
361 Fixed minor compilation problem with procsignal.h
363 Fixed bug when simulating projections and Trace == CONSOLE
364 Fixed scaling bug when performing redundant rotations around object
367 Improved compilation on RedHat 7
368 Changed some of ANSI C header files to C++ header files
369 Removed README.RedHat7
372 Added documentation for --geometry setting
373 Added README.RedHat7 document
376 Fixed bug in generation of binary PGM files
377 Fixed MPI compilation bug in phm2pj.cpp
378 Inverted y-axis output for pj2if (bug alert from Ian Kay)
381 Additions to man pages (Ian Kay)
382 Fix problem with reading of ASCII phantom files (Ian Kay)
385 Fixed syntax error in fftw configuration
386 Slight modifications to support gcc v2.9.6
389 Version 2.0.0 released!
390 ctsim: Added Window menu to Main frame
391 ctsim: Disabled not support reconstruction method
392 Fixed obscure bug in sys_error
393 Fixed compilation in mingw environment not present
394 Fixed compilation in non-graphical environments
397 ctsim: Added animation of reconstruction
398 ctsim: Added saving of dialog parameters for Projection & Reconstruction
399 ctsim: Added progress dialog for rasterization of phantom
400 ctsim: used setpriority to set lower priority
401 ctsim: fixed pReconstruct not being deleted causing scaling problem
402 ctsim: fixed projection animation dialog buttons
405 ctsim: Added projection graph to animation of projection collection
406 ctsim: Added single stepping to projection collection animation
407 ctsim: improved File/Properties display for projection files
408 ctsim: Added progress dialog for reconstructions
409 ctsim: Added file labels for projection and reconstruction images
410 ctsim: Made File/Properties bring up modal dialogs
411 Added reconstruction for Equilinear and Equiangular geometries
412 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
413 Separated reconstruction into Reconstructor class
414 Fixed center of detector adjustment for even number of detectors
415 Added --enable-static to generate statically linked programs
418 ctsim: Added animation of projection collection processs
419 ctsim: Added Auto Scaling for image windows
420 ctsim: Change menus from "windowing" to "display scaling"
421 Added FieldOfView and FocalLength ratio parameters to projection collection
422 Added FocalLength & FieldOfView fields to projection data files
423 Added Projection collection for Equilinear and Equiangular geometries
424 Changed name of Rowland Phantom to correct name of Shepp-Logan
425 Fixed bug in backprojection selection
428 Added RCS Id strings to executable files
429 Added RPM Spec file for RPM package creation
430 Added loading of ASCII phanthom definitions from files
431 Fixed compilation for non-SGP architectures
432 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
433 Added Filter-Generation option to reconstruction to allow direct or
434 inverse_fourier construction of filters
435 Added median to statistics and to auto-windowing
438 Added line color support to SGP
442 Finished support for dmallocxx library
443 Fixed bug in SignalFilter::convertFilterMethodNameToID()
444 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
445 G2 windows and well as WXWindows.
446 ctsim program: "Create Phantom" now shows phantom object
447 Fixed row-plot bug in if-2
448 Reworked EZPlot's multiple plot operation
451 ctsim program: improved initial size and scroll area for image
453 ctsim program: added rasterization parameters, projections parameters,
454 and reconstruction parameters dialogs
455 Moved char[] static definition from header files to c++ files
456 Completely reorganized option processing in classes to improve
457 expandability and to assist ctsim graphical user interface.
460 ctsim program: Added dialog to set minimum/maximum display levels
461 Started ctsim.tex document file
464 Fixed compiler warnings at -Wall level
465 Began work on CTSim program to be graphical front-end of all functions
466 Moved current src/*.cpp to tools/*.cpp
467 Made CTSim graphical front-end's home to be src/
470 Added highly optimized backprojection method idiff3
471 Moved comparative stats to if-2 program from ifinfo
472 Fixed image display in if2img using G2 library
473 Added column-plot and row-plot options to if-2
474 Added autoselection of analytic/calculated spatial responses to SignalFilter
475 Added frequency-based preinterpolation to SignalFilter and idiff3
476 backprojection method. Currently, this technique is still under
477 development and debugging
478 Moved graphic file writing to ImageFile class from if2img program
481 Cleaned up SignalFilter class
482 Added zeropad option to pjrec
483 Added zeropad options to html and cgi files
484 Added fourier_table and rfttw filter methods
485 Added FFTW routines to use real/half-complex transformations
488 Updated trace level processing
489 Added trace level to SignalFilter
490 Fixed magnitude vs. real output bug in FFT/Fourier filter
493 Fixed const issue with ImageFileArray
494 Fixed Array2dFile::labelsCopy()
495 Added copy constructor and assignment for Array2dFileLabel class
496 Added Timer to if-2.cpp and ifinfo.cpp
497 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
498 Added option processing for filter-method for pjrec to choose
499 between convolution, dft, & fft filtering
500 Fixed format string for EZPlot so axis labels now print
501 Added support for FFTW library
504 Rewrote Array2dFile class to be non-templated
505 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
506 Rewrote Array2dFileLabel class to make members private, added access routines
507 Removed timedate.cpp in favor of standard C library time/date functions
508 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
509 Added signature tag and creation date/time to projection files
512 Standardized string option processing by classes. All classes use character strings
513 to select options rather than numeric constants. Added fail() and failMessage()
514 methods to verify that objects are created correctly by character strings.
515 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
516 Rewrote ImageFile class
517 Started support for dmallocxx library, not finished
518 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
519 Updated ifinfo to show comparative statistics
520 Added printLabels() to Array2dFile class
521 Added printStatistics() to ImageFile class
524 Moved conversion filter name/id to Filter class
525 Moved conversion backprojection name/id to Backproj class
526 Added MPI broadcasting of strings
529 Merged proj_reconstr into class Projections
530 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
531 Code cleanup in projections.cpp
532 Moved conversion of phantom names/id to Phantom class
535 Converted projection files to C++ library with frnetorderstream
536 Converted image files to C++ library with frnetorderstream
537 Converted filter and convolution to object-oriented code
538 Changed default image file to float from double -- Changable in imagefile.h
539 Optimized image file writing on little-endian architectures
540 Updated README and INSTALL
543 Reorganized source files
544 MPI bug fixed to phm2pj.cpp
547 Reorganized include files
548 Fixed const pointers in strfuncs
551 Renamed directories, moved source files, combined source files
552 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
556 Skip versions to make version 2.0 the first fully C++ version
557 Renamed Raysums to Projections throughout files
558 Renamed Detector to Scanner
559 Converted Scanner and Projecions to full object-oriented
562 Converted Phantom and PhantomElements to Object-Oriented
563 Converted Detector to Object-Oriented
566 Improved Integer backprojection method
567 Fixed nearest neighbor to be truly nearest neighbor
568 Made linear interpolation more integer arithmetic -> speed improvement
569 Finished converting all C files to C++
570 Converted all use of malloc/free to C++ new/delete
571 Began object-oriented conversion of Phantom and Projection structures
574 Converted MPI data structures to C++ object
575 Made ImageFile directly inherit from Array2dFile
578 First C++ conversions
579 Portable IF (image file) format implemented with objects (SDF removed)
580 - Now all data files are cross-platform compatible
581 Converted from MPI to MPI++
582 Converted backprojection to object-oriented
583 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
586 Simpilifed endian handling
589 Added support for 64-bit (IA64) CPU
590 Removed broken B-spline interpolation
591 Added support for cygwin platform under Windows 2000
592 Added support for 16-bit PNG graphics
595 Added compile-time configuration of endian order
598 Modified the raysum file format to be platform independent
601 Added Microsoft VC compatibility
602 Cleaned up compilation warnings in libgraph
605 Continued conversion to ANSI C
606 Removed old CRT routines
609 Renamed pictures to phantoms, objects to phantom elements
610 Continued code cleanup
613 More code cleanup with reorganizing libraries
614 Added --log and --exp to sdf-1
615 Allowed negative numbers for window levels in CGI interface
618 Continued code cleanup
622 Better documented, coded raysum in-memory on on-disk options
625 Cleaned out library that wasn't being used by CTSim
626 Modified ctsim.cgi to read in configuration file ctsim.conf
629 First open source distribution for GNU/Linux
632 Converted to GNU/Linux
633 added MPI support via LAM library
636 Developed under MS-DOS and IBM EGA graphics