napari-imaris-loader 0.0.3

Napari plugin for loading Bitplane imaris files '.ims'

napari-imaris-loader

Napari plugin for loading Bitplane Imaris files '.ims'.

Notes:

For this plugin to work "File/Preferences/Experimental/Render Images Asynchronously" must be selected.

Features

• Multiscale Rendering
  • Image pyramids which are present in the native IMS format are automatically added to napari during file loading.
• Chunks are implemented by dask and matched to the chunk sizes stored in each dataset. (Napari appears to only ask for 2D chunks - unclear how helpful this feature is currently)
• Successfully handles multi-terabyte multi-channel datasets (see unknowns).
• Higher 3D rendering quality is enabled by a widget that reloads data after specifying the lowest resolution level (higher number = lower resolution) to be included in the multiscale series.

Known Issues / limitations

• Currently, this is only an image loader, and there are no features for loading or viewing objects
• Napari sometimes throws errors indicating that it expected a 3D or 5D array but receives the other.
  • This sometimes but relatively rarely causes napari to crash
  • Would like to enable Asynchronous Tiling of Images, but this results in more instability and causes crashes.
• Contrast_Limits are currently determined by dtype and not the actual data.
  • float: [0,1], uint8: [0,254], uint16: [0,65534]
  • Future implementations may use the HistogramMax parameter to determine this.
• 3D rendering works, but it is suggested to turn on 1 channel at a time starting from the highest channel to avoid some OpenGL errors and misalignment errors.
  • For example: Turn on only Channel 1, activate 3D rendering, then turn on Channel 0.

Unknowns

• Time series data has not been tested, but it has been designed to work.

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This napari plugin was generated with Cookiecutter using with @napari's cookiecutter-napari-plugin template.

Installation

You can install napari-imaris-loader via pip:

pip install napari-imaris-loader

Contributing

Contributions are very welcome. Tests can be run with tox, please ensure the coverage at least stays the same before you submit a pull request.

License

Distributed under the terms of the BSD-3 license, "napari-imaris-loader" is free and open source software

Issues

If you encounter any problems, please file an issue along with a detailed description.