Here is the summary of the online course available in French and English:
 
1) Processing before the histogram rise
- Opening the file in linear and autostretch mode
- Cropping
- Gradient extraction
- SCNR green noise removal
- Color calibration by photometry
- Switch to linear mode before the histogram rises
 
2) Histogram rise and aesthetic finishes
- Histogram rise
- Asinh Transformation
- Color saturation
- Switch to Lightroom for finishing touches (light, saturation, details, noise reduction)
- Comparison of the final image with the initial one
Have you been photographing with your camera all night and want to discover the wonder you captured? Do you want to share the fruit of your work with your loved ones? Are you eager to learn the essential processing processes in astrophotography? So this lesson is dedicated to you! Good processing will give you a quality result even if you used a simple camera or a smartphone like a Samsung S21 for example.
 
We offer you an express, easy and effective treatment with the free Siril software, thanks to two explanatory videos and two PDF supports that you can download at home for your next treatments.
 
In the first section, we discuss preliminary processing for histogram raising such as gradient extraction, green noise removal and photometric color calibration. Then, in the second part, we raise the histogram as well as the various aesthetic treatments in order to have a realistic and beautiful final image including the signal that you captured during your session and magnified. To finish, we offer you a final pass in the Lightroom software to take care of the finishes in a professional manner.
 
Do you want to learn how to showcase your work? Are you tired of YouTube tutorials that say everything and the opposite? So take this opportunity to learn once and for all a simple, quick and effective method that will allow you to take a leap in the quality of your astrophotography!
 
Do you still have doubts about the lesson, its price or would you like to receive personalized advice? So leave us a message on our contact page or write to us at the email address contact@astrophotographieonline.com and we will be happy to read you and help you in order to pass on our knowledge to you