image_demo.py

from glue import custom_viewer, qglue
from glue.clients.ds9norm import DS9Normalize

image = custom_viewer('image',
                      contrast=(0.0, 1.0),
                      image='att'
                      )

@image.plot_data
def draw(axes, image, contrast):

    if len(image.shape) != 2:
        return

    norm = DS9Normalize()
    norm.contrast = contrast

    axes.imshow(image, norm=norm)


qglue(data='w5.fits')