How to process a meteor shower image
Here are the steps to follow to get a meteor shower image with all the meteors aligned according to the radiant.
1. Import images
The first thing to do is always to import the images to Nebulb (if possible in RAW format the better).
For more information you can read this other article: How to import images
2. Define the sky mask
Secondly, the sky mask must be defined (so that Nebulb knows where the stars are).
For more information you can read these other articles:
3. Set the stacking configuration
Here, as we want to obtain a meteor shower image, it is important that the "Detect flying objects" option is selected.
4. Save the project
In order to continue, you must save the project, since Nebulb does not allow you to execute the stacking if the project is not saved (to avoid losing information because it has not been saved).
To save a project you must open the "File" menu and there you will find the options to do it.
5. Execute stacking
Once the project is saved, the next step is to execute the stacking, for which you simply click on the following button:
When you do so, a confirmation message will be displayed (which you must accept to continue) and, finally, Nebulb will ask you to select the temporary working folder (which is nothing more than a folder where Nebulb can write and read the temporary files it generates during stacking).
6. Apply adjustments to the image obtained from stacking
The next step is to apply the light pollution reduction and development adjustments to the resulting stacked image. This is something you can do now or after managing the flying objects (there is no problem in the order you follow).
In this other article you have an example of how to make the after stacking adjustments: https://help.nebulb.com/portal/en/kb/articles/how-to-stack-images-to-greatly-reduce-light-pollution#6_On_completion_of_stacking
7. Manage detected flying objects
During stacking Nebulb automatically detects and classifies all flying objects (meteors, strangers, satellites/planes and ghosts). So, now you just need to do some simple tasks to make sure that only the meteors of the main meteor shower appear in the final image and stand out well in the sky.
To do this in Nebulb you have the module "Flying Objects" in which all the necessary tools are included to do these tasks in an easy and fast way:
1. Make a general review of the detected meteors.
Also, in this other article you have all the information related to the management of flying objects: https://help.nebulb.com/portal/en/kb/documentation/flying-objects
8. Sky/ground blending
Before finalizing the image in Nebulb, there is one last step: adjusting the fusion between the sky and the ground.
Nebulb works internally with one image for the sky and another for the ground, on which you can apply different settings.
Because of the latter (different settings for the sky and the ground) it is necessary to apply a fusion technique that allows to combine these two different parts into a single image (which is what you want to get in the end).
To do this in Nebulb you have the "Blend" module.
In this other article you have an example of how to adjust the sky/ground blending: https://help.nebulb.com/portal/en/kb/articles/how-to-stack-images-to-greatly-reduce-light-pollution#9_Skyground_blending
9. Export the final image
Finally, you only have to export the final image, for which you can use the "Export Images" module at the bottom of the left tools panel.