Jan 13, 2022 · Related Links: ds9 Reference Manual ds9 Users Manual: CIAO-style threads on using ds9 Video demos and tutorials Using CIAO Region Files thread Last Update: 13 Jan …

Nov 1, 2024 · The ds9 catalog tool allows users to annotate their images with markers for sources from many different catalogs (including the Chandra Source Catalog and users own source …

Sep 23, 2025 · CIAO is the software package developed by the Chandra X-Ray Center for analysing data from the Chandra X-ray Telescope. It can also be used with data from other …

Feb 15, 2022 · SAOImage ds9, the imaging application distributed with CIAO, has the capability for users to create an RGB image and interactively adjust many of its parameters to achieve …

Aug 11, 2025 · SAOImage DS9 Help, I am unable to create regions in ds9! By default, ds9 will no longer create regions when it starts; that is, clicking in the ds9 window will not create a region. …

Jan 24, 2022 · Overview Synopsis: The tool dmgroupreg takes a ds9 region file (which must contain grouping information) and creates source and background region files that the CIAO …

Sep 4, 2025 · DS9 export vs saveimage. The examples below use ds9's export functionality. export and saveimage are fundamentally different even though both can write bitmap images. …

DS9 regions CIAO understands most of the simple, atomic regions that DS9 can draw including circle, ellipse, point, box, polygons, and annulus. The regions that are purely for annotations …

Feb 22, 2022 · In general, the ds9 region format has many more options for storing display properties (color, coordinate system, comments), while the CIAO region format is a more …

Sep 6, 2025 · Bugs: Installation & Smoke Tests The following is a list of known issues that may be seen when installing CIAO. If you encounter a problem that is not listed here, contact CXC …