(last edited 16-Mar-2005 16:32)
Links: Download User Guide FAQ Revision history
This is new code, if you get a repeatable crash or error then please tell me so I can fix it. If you have uncompressed PC TIFF images that don't load then please send them to me as an email attachment so I can improve my TIFF reader.
Any other suggestions are also welcome, those that will be
useful to many users will be most likely to be implemented.
Nick Carter
Disclaimer:
This software is freeware. There is no warranty of any kind. The
software is stable on our limited number of test PCs, however the author cannot
accept any responsibility for any data loss or damage that may result from using
this software. You should read "licence.txt" before running or redistributing
this software.
System requirements: To run Retrac you need a PC running Windows 95 (or later) with a MMX capable processor and DirectX 7.0 or later.
Download Retrac (2.10.05) Extract "retrac.exe", "njc-ip.dll" and "licence.txt" from the zip file to a new folder. Once you have read the licence.txt, click on retrac.exe to run it. If you get a message asking for mscomctl.ocx, click the preceding link and extract it to the same folder as retrac.exe.
SampleFrames.zip (800kb) A sample sequence of images and a tracking data file. Shows microtubules gliding over Neurospora kinesin viewed by video enhanced DIC.
How do I uninstall Retrac?
If you installed before 2005, go to the "Control panel", choose "Add/Remove
programs", select "Retrac" from the list.
Installations after 2005, just delete the files called "retrac.exe",
"licence.txt" and "njc-ip.dll".
User settings such as
user-defined kernels, calibrations and the location image files are not deleted when you do
this. This is done in order to maintain settings when you update Retrac. To
remove or view this information, use a registry editor such as Regedit and
search for "Retrac" (in a section called "VB and VBA Program Settings").
Why did you call it Retrac?
It's my name backwards.....
visitors to this page
since Dec 2004
2.10.05: (07.03.05)
New: option to prevent skip back to frame 1 when tracking a new object
2.10.04: (28.07.04)
Testing multi-image tiff loader (not released, not complete)
2.10.03: (24.04.03)
New: option to manually select files from list in the "Open images" dialogue
(suggested by Mike Anson)
New: mouse right-click to fix/unfix the position of the zoom window
New: Zoom window now responds to image refresh, so movies play in zoom window
too.
New: Toolbar play button changes to stop button during movie playback.
Fixed: failure to show zoomed image data when image < zoom window
Fixed: "reduce contrast" behaviour with black or saturated pixel values
2.10.02: (26.03.03)
New: ability to fix the zoom window on one part of the image
New: Added functions to 2D FFT (Butterworth filtering and mask smoothing)
New: Saved tracking data files now forced to have the ".dat" file extension
Fixed: Directdraw error loading images with odd number pixel width (now padded by 1
pixel)
Fixed: Bug with some Euro versions of windows when loading the tracking window
FIxed: Comma "," now interpreted as decimal point when reading field dimensions
2.10.01: (05.12.02)
New: FFT filtering control
Fixed: DirectX surfaces now survive a restore when another application runs full
screen
Fixed: some problems with images widths that were non-multiple of 4.
2.00.07: (29.11.02)
New: Warning dialog ("Data not saved") on exiting tracking function
New: Beginning of 2D FFT filtering (mostly non-functional in this release)
Fixed: Odd tracking behaviour when drift object but no tracking objects defined
Fixed: Removed ability to track when no object selected!
Fixed: Modal error (crash) when cancelling "Open images" with Zoom window open
2.00.06: (25.09.02)
New: line length measuring routine
New: link to online manual in Help menu
New:
Changed kernel filtering interface simplified, now apply and edit in a single control
2.00.05: (4.09.02)
New: contrast control made more responsive
Fixed: Auto-contrast should now work correctly on multiple images
Fixed: Saved data files now include velocity/direction data tables (thanks Ryan Taft)
2.00.04: (31.08.02)
New:
Filter kernel editor is now more cursor-key friendly
New: RGB channels now selectable in brightness/contrast control
Fixed: failure to apply filters when first displaying the filter control
2.00.03: (released 21.08.02)
New: ability to reduce image contrast added
New: automatic brightness/contrast settings (reduces flicker in image sequences)
New: filtering and brightness/contrast now in separate forms
Fixed: Red-blue channels drawn in wrong colour in brightness/contrast
control
Fixed: crashed if tried to open the tracking window with only one frame loaded
2.00.02: (18.08.02)
New: start-up check for MMX capable processor
New: automatic online check for updates (can be switched off)
New: ability to read paletted colour TIFFs
Fixed: Failure to read some true-colour TIFFs due to misreading BitsPerPixel
tag (thanks Martin Heine)
Fixed: Retrac exits without warning if disk media is not present (thanks Martin Heine)
2.00.01: (16.08.02)
Please let me know of any glitches on your various combinations of DirectX and
graphics cards. I expect some problems here. If any supported images fail to
load please email them to me