nD labels

Display a labels layer above of an image layer using the add_labels and add_image APIs

Tags: visualization-nD

Python (.py)

Notebook (.ipynb)

/home/runner/work/docs/docs/.venv/lib/python3.12/site-packages/napari/_qt/qt_event_loop.py:50: UserWarning: System theme detection requires a Qt6 backend. Please switch to PyQt6 or PySide6 to use it.
  theme_type=get_system_theme(),
/home/runner/work/docs/docs/.venv/lib/python3.12/site-packages/napari/_qt/qt_event_loop.py:50: UserWarning: System theme detection requires a Qt6 backend. Please switch to PyQt6 or PySide6 to use it.
  theme_type=get_system_theme(),

from scipy import ndimage as ndi
from skimage import data

import napari

blobs = data.binary_blobs(length=128, volume_fraction=0.1, n_dim=3)
viewer = napari.Viewer()
layer = viewer.add_image(blobs[::2].astype(float), name='blobs', scale=(2, 1, 1))
labeled = ndi.label(blobs)[0]
viewer.add_labels(labeled[::2], name='blob ID', scale=(2, 1, 1))

if __name__ == '__main__':
    napari.run()