2 InstallationOpen an imageMake a profileGet a LUTPhotometryBasic operations (add/subtract, etc.)RGB photometry & astrophotography
3 InstallationFor Linux/Unix:Copy the folder ‘SalsaJ-Soft’ in your home directoryOpen xterm and go to the ‘~/SalsaJ-Soft’ folderRun the software with order : make salsajFor Windows:Copy the folder ‘SalsaJ-Soft’ in your home directoryOpen this folder and click on 'salsaj.bat'For Mac :Copy the folder ‘SalsaJ-Soft’ in your home directoryOpen this folder and click on 'salsaj.jar'
4 Click on the icon or click on ‘Open’ in the ‘File’ menu Open an imageClick on the icon or click on ‘Open’ in the ‘File’ menuChoose your image, e.g. the image ‘ sny.fits ’:Ouverture d’une imageHow to adjust the image‘s brightness?
5 To adjust the image, click on this icon as below : Or select the option ‘Window/level…’ in the ‘Image’ menuA new window will be displayed :Aluster l’mageclick ‘Auto’
6 Make a profilePlot a segment on the image to get the corresponding plot profile.You must indicate the two ends of the segment with the mouse.The cursor on the segment displays the actual position on the profile.
7 Display the Look-Up Table The Look-Up Table (LUT) represents the relation between colour and intensity of stars.Select the option ‘Show LUT’ in the ‘Image’ menu.
8 How to change the LUT:Select the option ‘Lookup Tables’ in the ‘Image‘ menu, for example ‘Red‘.
9 Other LUT for example :Multi-colour LUT ‘Spectrum’‘Green’‘Blue’
10 PhotometryThe photometry tool enables to measure the intensity of stars.Click on the object you want to measure the photometryThe result appears in the second window.:
11 Basic operations (add/subtract, etc.) Open two images to make some basic operations :Adjust images with ‘Auto’
12 Add two imagesTo compare two images, it is interesting to add them : Select in the‘Operations’ menu the option ‘Image Calculator…’, the result will becreated in a new window.Choose the images,the operation andclick ‘OK’
13 Subtract two imagesIt is also interesting to subtract them : Select in the ‘Operations’ menu the option ‘Image Calculator…’, the result will be created in a newwindow.Choose the images,the operation andclick ‘OK’
14 RGB photometry & astrophotography Open three images:Select in the ‘Image’ menu the ‘Stacks’ menu and select the option‘Convert Images to Stack’(1) . Choose in the ‘Image’ menu the menu ‘Colour’ and select the option ‘Convert Stack to RGB’(2).On the way to real colour images…(1)(2)