IRAF - Image Reduction and Analysis Facility - [open source - Unix, OpenVMS] A general-purpose software system for the reduction and analysis of astronomical data. IRAF is written and supported by the IRAF programming group at the National Optical Astronomy Observatories (NOAO) in Tucson, Arizona.

ESO-MIDAS: Image Data Analysis System - [open source - Linux/Unix, VAX/VMS/OpenVMS] General tools for image processing and data reduction with emphasis on astronomical applications including stellar and surface photometry, image sharpening and decomposition, as well as imaging and special reduction packages for ESO instrumentation.

AIPS++ - [open source - Unix, WinNT] The next generation AIPS software.

GIPSY - Groningen Image Processing System - [open source - Unix] A highly interactive software system for the reduction and display of astronomical data.

SuperFix/MegaFix - [commercial - DOS, Win3.1] CCD image processing software for amateur astronomers. Handles most file and camera formats. Allows tricolor imaging and 'track-and-stack as well'.

IDL - Interactive Data Language - [commercial - multiplatform] Data analysis, visualization, and cross-platform application development software.

PV-WAVE - [commercial - multiplatform] Advanced visual data analysis software.

MaxIm DL - [commercial, demo available - Win95/98/NT/2000] Image processing and CCD camera control software for astronomical imaging. Supports Apogee, Celestron, FLI, HiSIS, Meade, SBIG, and Starlight Xpress CCD cameras; video cameras, autoguiders, and filter wheels. ASCOM compliant.

CCDPro - [commercial, demo available - Win95/98] Advanced image processing software for astronomy. Image restoration using maximum entropy or Lucy Richardson algorithms, unsharp masking, LRGB color, multilayer align and combine, adaptive dark subtract, free evaluation download.

Seeing simulation and deconvolution - GPL implementation of a seeing simulator and deconvolution via Cross-spectrum and Bi-spectrum.

MIRA - [commercial - Win95/98/NT] Scientific image processing and analysis software.

Cookbook CCD Image Processing - [shareware - Win95] Image processing tool for the Cookbook 245 CCD camera.

AstroArt - [commercial, demo available - Win95/98/NT] A complete software product for analysis and processing of astronomical images. With the built-in star atlas based on the Guide Star Catalogue, it is also possible to perform astrometric and photometric calibration on your images.

CCDSoFT - [commercial, demo available - Win95/98] Main image processing features: unsharp mask, maximum entropy and Lucy-Richardson deconvolution, multilayer with auto-align, median, mosaic, RGB, LRGB images.

Quantum Image - [commercial - Win95/98/NT] Image restoration program, it can restore and enhance defect images (ex. out of focus and noise).

Auriga Imaging - Auriga Imaging's program RegiStar automatically registers (aligns) astrophotos -- no user intervention required.

CCD Astronomy - [some are free, MS-Win] Software tools for Cookbook camera.

AIPS++ - Software system for astronomical data reduction on parallel computers. Provides the capability for calibration, editing, image formation and enhancement, analysis of images and other data streams.

MIIPS - [open source - OpenVMS/Unix] Multipurpose Interactive Image Processing System does astronomical image analysis. The main package runs on OpenVMS, but many subsets can run on Unix. All source code is provided.

ISDA - Irregularly Spaced Data Analysis - [Free - MSDOS, dosemu] Program to analyse irregularly spaced time series - variable star light curves etc.

MIRIAD - Multichannel Image Reconstruction, Image Analysis and Display - [open source - Unix, VMS] A toolbox in the form of an environment with a large set of moderate-sized programs which perform individual tasks involving calibration, mapping, deconvolution and image analysis of interferometric data.