Add multiscale image

Displays a multiscale image

Tags: visualization-advanced

Python (.py)

Notebook (.ipynb)

multiscale level shapes:  [(4096, 4096), (2048, 2048), (1024, 1024), (512, 512), (256, 256)]
/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(),

import numpy as np
from skimage import data
from skimage.transform import pyramid_gaussian

import napari

# create multiscale from astronaut image
base = np.tile(data.astronaut(), (8, 8, 1))
multiscale = list(
    pyramid_gaussian(base, downscale=2, max_layer=4, channel_axis=-1)
)
print('multiscale level shapes: ', [p.shape[:2] for p in multiscale])

# add image multiscale
viewer = napari.Viewer()
layer = viewer.add_image(multiscale, multiscale=True)

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