# image_open¶

sherpa.astro.ui.image_open()

Start the image viewer.

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_close()

Close the image viewer.

image_deleteframes()

Delete all the frames open in the image viewer.

image_getregion()

Return the region defined in the image viewer.

image_setregion()

Set the region to display in the image viewer.

image_xpaget()

Return the result of an XPA call to the image viewer.

image_xpaset()

Send an XPA command to the image viewer.

Notes

Image visualization is optional, and provided by the DS9 application 1.

References

1

http://ds9.si.edu/site/Home.html

Examples

>>> image_open()