rhizoTrak  is
  - an open source  tool for flexible and efficient manual annotation 
  of complex time-series minirhizotron images,
 
  - building on TrakEM2,
 
  - realized as a Fiji plugin available for Windows, Linux, and MacOS.
 
rhizoTrak  News
rhizoTrak  features
  - import and processing of the complete set of images of a time series in one single project
 
  - easy browsing through time points which  enables to annotate roots by simultaneously 
 considering images of different time points
 
  - temporal links between roots in different
images which  explicitly represented identity of the same physical root via so-called connectors
 
  - easy transfer of annotation data of one time point to the next as initial annotation where
  connectors between corresponding root annotations are automatically established
 
  - functions to propagate diameter and status information of treelines to connected 
  treelines in subsequent layers
 
  - automatic checks for inconsistencies in root typology due to merging of roots
  and assistance in solving them
 
  - the inherent representation of branching roots by modeling roots as treelines
 
  - an individual radius for each node of a treeline, and 
  user-definable status labels for segments of treelines
 
  - a large collection of editing operations for root treelines including split and merge, 
  where many of these operations are easily accessible via keyboard shortcuts
 
  - different visualization options for treelines and fast hiding and un-hiding of all annotated treelines
 
  - an optional user-configurable scalebar
 
  - redirection of treelines which is important as the upstream and downstream of a root is often 
  not straightforward to be identified in minirhizotron images
 
  - import and export of annotations from/to RSML format,
 
  - export of root measurements in a tab-separated format including the option to aggregate
  measurements within images
 
  - a plugin mechanism to merge results from automatic segmentation method which
are to be implemented as a MiToBo operator
 
rhizoTrak includes:
  - the R rhizoTrakAddons package to assist in analyzing and processing csv files generated by rhizoTrak
 
Sample image  and annotation

rhizoTrak is developed
Imprint