Add grayscale image

Display one grayscale image using the add_image API.

Tags: visualization-basic

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(),

import numpy as np
from skimage import data

import napari

# simulating a grayscale image here for testing contrast limits adjustments
image = data.astronaut().mean(-1) * 100 + 100
image += np.random.rand(*image.shape) * 3000
viewer = napari.Viewer()
layer = viewer.add_image(image.astype(np.uint16))

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