registax

{{Short description|Image processing software}}

{{refimprove|date=May 2013}}

{{Infobox software

| name = RegiStax

| logo =

| screenshot =

| caption =

| developer = Cor Berrevoets

| released =

| latest_release_version = 6.1.08

| latest release date = 6 May 2011

| programming language = Delphi 2006

| operating system = Windows

| language = English

| genre = Astronomy software

| license = Freeware

| website = [http://www.astronomie.be/registax www.astronomie.be/registax]

}}

RegiStax is image processing software for amateur astrophotographers, released as freeware, designed to run under Windows,{{cite web

|last1=Hough

|first1=Ken

|title=RegiStax running under Linux ?

|url=http://www.astronomie.be/registax/linux.html

|website=astronomie.be/registax

|publisher=registax

|accessdate=2 April 2017

|date=2011

|quote=RegiStax has been written and compiled to run under Microsoft Windows, but [...] RegiStax can be run under Linux via wine.}}{{cite book

|title= Lunar and Planetary Webcam User's Guide

|first= Martin

|last= Mobberley

|publisher= Springer

|date= 2006

|url= https://books.google.com/books?id=2YfYNk4hHy8C&dq=%22Cor+Berrevoets%22&pg=PA88

|page=89

|isbn= 9781846281990

|quote= The package that emerged head and shoulders above the compeditors was written by a Dutchman, Cor Berrevoets and is called Registax.}}{{Cite web

|title= Digital Astrophotography Beginner's Guide - Article

|date= 2003-04-16

|url= http://www.cloudynights.com/item.php?item_id=130#Image%20processing

|first= Pierre

|last= Vandevenne

|quote= Registax (by Cor Berrevoets) offers the best lunar and planetary results in a very easy to use package.

|accessdate= 2013-05-26}}{{unreliable source?|date=May 2013}}{{Cite web

|title= Joe Zawodny » RegiStax vs AviStack

|date= 2008-11-15

|url= http://joe.zawodny.com/index.php/2008/11/15/registax-vs-avi-stack/

|first= Joe

|last= Zawodny

|quote= RegiStax has been around for a long time and is probably the single reason why amateur astronomy has made huge strides in the last several years.

|accessdate= 2013-05-26}}{{unreliable source?|date=May 2013}} but which also runs on Linux, under wine.

Its purpose is to produce enhanced images of astronomic observations through combining consecutive photographs (an image "stack") of the same scene that were taken over a short period of time. The process relies on the subject (e.g. a planet) being unchanged between photographs, so that any differences can be assumed to be random noise or atmospheric interference.

The stack of images can be in the form of individual consecutive shots or from frames of a movie camera trained on the scene.{{cite book|title=Lunar and Planetary Webcam User's Guide|first=Martin|last=Mobberley|publisher=Springer|date=2006|url=https://books.google.com/books?id=2YfYNk4hHy8C&dq=%22Cor+Berrevoets%22&pg=PA89|page=89|isbn=9781846281990}}{{cite book|title=Digital Astrophotography: The State of the Art|pages= 45–60|first1= Keith|last1= Wiley|first2= Steve|last2= Chambers|chapter=Long-Exposure Webcams and Image Stacking Techniques|publisher=Springer|date=2005}}

File:2012 Transit of Venus from SF.jpg

File:Moon-Petavius-crater-LB16-diaphragmed-90mm-Registax.jpg