    Start the image viewer.

image_open()

The image viewer will be started, if found. Calling this function when the viewer has already been started will not cause a second viewer to be started. The image viewer will be started automatically by any of the commands like `image_data` .

>>> image_open()

Notes

Image visualization is optional, and provided by the DS9 application.

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

December 2023