hello my name is alberto Moreno I am an astro landscape photographer and timelapser, I have found the siril tool relatively several weeks ago, and I have already processed some photography with the functions of stacking, background extraction, asinh, precisely I am not an expert yet.
I’ve been looking for information about a topic, but I haven’t found it exactly, or I don’t understand it that way.
I want to process with siril a milky way, specifically a milky way arc, taken with several images in panoramic is like creating a mosaic in deep space, I know that siril does not accept yet the mosaic tool, better said it is not able to perform the mosaic, but my question is. Is there any function or any way to do the processing in “x” number of photographs, that this processing is identical for them, and then take them to an external program and assemble that panoramic sky with via lactea ?
Hello Alberto, welcome here and thanks for the message.
I understand what you want to do; it’s not simple, because the operations that we typically do on the stacked image require user intervention and may not all look the same with the same parameters. For example colour calibration (if it’s a colour image) may differ slightly between two images next to each other, background removal may not produce the same background in the borders, histogram stretching will amplify this…
You can still stretch the histogram with the same values for all images, that’s a start I guess, using the mtf command (same values as those in the histogram tool). We don’t have commands for white balance yet, maybe you can reproduce it with the manual white balance, it’s not ideal…
Hopefully in the future we’ll be able to make mosaics in siril, but it’s not easy and takes time to develop.
Thank you very much for the welcome and for the quick response. I understand what you are telling me although I am not very familiar with the subject of commands, I will try to investigate.
It occurred to me also to do it the other way around, create the mosaic and then pass the .tiff file. To siril.
I had little time and siril saw that there was something inside the file that could not perform the extraction of the background, I came to the conclusion that although the file was in square format, ptgui to assemble the panorama gives you a file in which the corners have no information, perhaps that was why the tool was not able to create the reference points, so much so that the program was blocked.
It occurs to me that I could try once out of ptgui, fix the frame in photoshop and then take it to syril. It may be a nuisance but the results that siril gives me, I believe that I have not obtained with another processing program, and photoshop I handle it well.
I will try and try to give you some feedback.
Thank you very much
Sorry for my english, i used deepl for traduction. LOL
Perfect master vincent, it is as I feared… as soon as I can I will try to load the image in another way without the borders to see what results I get. Thank you very much.
For astro mosaics of completed photos, I have used a free Microsoft program, sadly now discontinued, called ImageCompositeEditor 2.0. It worked great for a two panel image I put together.
(See at https://photos.app.goo.gl/hMxFx9rXd6jyqLmL8)
I don’t know how it will work for something more extensive, like the Milky Way.
It is officially unavalable, but there are links to the archive here: ICE-2.0.3-for-64-bit-Windows.msi ICE-2.0.3-for-32-bit-Windows.msi