Crystal Image Quantitative Image Analysis

Known Bugs

Versions 1.0.0 -- 1.0.2

Versions 0.9.7 -- 0.9.8

• The wavelet module contains a number of issues, notably for images that are not rectangular and whose size is not a power of two. In these cases, the wavelet module pads the image with zeros, but does not resize it after the inverse wavelet transform
• The kate syntax definition does not install completely. After installing cimage from the .deb package, it is necessary to run

  		sudo update-mime-database /usr/share/mime
  	

  to complete the generation of the mime-types.

Versions 0.9.2 -- 0.9.8

• Crystal Image has serious issues with PulseAudio! - It appears that all buttons are linked to some (not activated) system sound. Any widget operation, such as opening a window, emits a PulseAudio call which leads to cimage crashing. This bug is not inside the Crystal Image codebase, but is rather related to the Canberra library.
  Observations: Gnome desktop + Pulseaudio + cimage seem to work. KDE + PulseAudio + cimage seem to work, but if Gnome is installed as well, cimage crashes. Furthermore, no problems have been observed on Ubuntu 8.04.
  Additional observation: If cimage is run with elevated privileges (sudo cimage), the crash does not happen. Could the crash be related to some inaccessible driver? Perhaps this is just a question of adding a line to /etc/group?
  
  • Workaround 1: Disable system sounds - in Gnome: System -> Preferences -> Sound; Choose "No Sounds" as sound theme.
  • Workaround 2: In KDE - make sure the Ubuntu desktop is not installed.
  • Workaround 3: Disable Canberra. On 12.04 systems, the relevant file is
    /etc/X11/Xsession.d/52libcanberra-gtk-module_add-to-gtk-modules
    Note that this file is only created when you have both Gnome and KDE desktops installed. Edit this file (as root) to always export GTK_MODULES="" and restart the X server. Click here for a sample file that fixes the problem.
  • Workaround 4: It appears that uninstalling the package "canberra-pulse" also fixes the problem.
• Macros: Nested if-else-endif does not work
  The macro interpreter does not recognize the else that corresponds to an if. This bug is limited to nested if-else structures. Nested if-endif structures without else work properly, and non-nested if-else-endif structures work properly, too.
  Workaround: Split outer-level if-else-endif structures into two mutually exclusive if-endif structures.
• Macros: In some cases, an unbalanced FOR/ENDFOR, WHILE/ENDWHILE, IF/ENDIF etc cause cimage to crash rather than display an error message. If you get mysterious crashes, such as double-free or bufer overflow problems, this may be the cause.
• Version 0.9.4 contained a bug that prevented standard deviations from being computed correctly. This bug was not present in earlier versions and has been fixed in 0.9.5 and later.
• The DICOM import function is showing its age. Some newer DICOM images can no longer be imported. At some point, I'll have to rely on a library, such as dcmtk.