1. SalsaJ tutorial

2. Installation
Open an image
Make a profile
Get a LUT
Photometry
Basic operations (add/subtract, etc.)
RGB photometry & astrophotography

3. Installation
For Linux/Unix:
Copy the folder ‘SalsaJ-Soft’ in your home directory
Open xterm and go to the ‘~/SalsaJ-Soft’ folder
Run the software with order : make salsaj
For Windows:
Copy the folder ‘SalsaJ-Soft’ in your home directory
Open this folder and click on 'salsaj.bat'
For Mac :
Copy the folder ‘SalsaJ-Soft’ in your home directory
Open this folder and click on 'salsaj.jar'

4. Click on the icon or click on ‘Open’ in the ‘File’ menu
Open an image
Click on the icon or click on ‘Open’ in the ‘File’ menu
Choose your image, e.g. the image ‘ sny.fits ’:
Ouverture d’une image
How 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’ menu
A new window will be displayed :
Aluster l’mage
click ‘Auto’

6. Make a profile
Plot 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. Photometry
The photometry tool enables to measure the intensity of stars.
Click on the object you want to measure the photometry
The 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 images
To compare two images, it is interesting to add them : Select in the
‘Operations’ menu the option ‘Image Calculator…’, the result will be
created in a new window.
Choose the images,
the operation and
click ‘OK’

13. Subtract two images
It is also interesting to subtract them : Select in the ‘Operations’ menu the option ‘Image Calculator…’, the result will be created in a new
window.
Choose the images,
the operation and
click ‘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)