SAOImage 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.
Improved Contour Support
Contours are more accurate and a number of improvements have been made.
Save As
Support for SAVE AS jpeg, tiff, png, ppm, and mpeg is now internal to
SAOImage DS9 and is available for all ports. Ghost Script is no longer required.
New Windows Port
SAOImage DS9 for windows is an all new port which only requires 2 DLLs.
A number of features previously available in other ports are now available
in the Windows port as well.
New MacOS X Port
The SAOImage DS9 for MacOSX (darwin) is self-contained in one executable
file and no longer requires external dynamic libraries.
Background and Nan/Inf Color support
The user may select the image background color and the color to be used
to display NaN/Inf numbers via the preferences menu.
Improved Mosaic Support
Support for Mosaic images has been improved and a number of new display
modes implemented, including Multiple Extension Data Cubes, IRAF Mosaics,
WCS Mosaics, WCS Linear Mosaics and WFPC2 Mosaics.
MPEG-1 Support
Datacube images can now be saved as a MPEG-1 movie. The movie has a frame
rate of 25 fps.
IRAF
DS9 now supports IRAF's new IIS image display protocol that supports up
to 16 display frames.
For more detailed information, Please see Release Notes