DS9 Version 3.0 New Features
RGB Images
DS9 now supports RGB Images. An RGB Image is an image which is composed
of 3 color channels, red, green, and blue. In each channel is loads a FITS
image, FITS binary table, or FITS Mosaic. Each channel has its own Scale
and Bin parameters. DS9 will align the images in the three channels base on
the WCS, Physical, or Image coordinates. For more infomation, see File Menu, XPA,
and Command Line Options.
DS9 support two new file formats for RGB images. The first is FITS Data
Cube, containing 3 slices which represent the red, green, and blue color
channels. The second, is a FITS Multiple Extension file, containing 3 extensions,
again representing the red, green, and blue color channels. For more infomation,
please see File Formats.
Improved Support for Web based Archives
A number of improvements have been implement to support web based archives.
This includes expanded support for the proposed FITS Mime-Type RFC.
Improved Plot Widget Support
Analysis plots now support multiple data sets, and can be fully configured
via xpa.
Large File Support
Selected ports of ds9 now support very large files, typically larger than
2Gb. Furthermore, memory management has been enhanced to greatly improve
performance when processing very large files.
For more detailed information, Please see Release Notes