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| sent on February 25, 2017 (16:09) | This comment has been automatically translated (show/hide original)
nice shot
angel bello scatto
angelo |
| sent on February 25, 2017 (17:28) | This comment has been translated
Thanks Angelo!  |
| sent on February 28, 2017 (2:32) | This comment has been automatically translated (show/hide original)
A beautiful Rosetta, details obvious ... I only see little colored stars and the sky a dark fur on my monitor, signal there's a lot ... the sony is a beautiful beast ... I see that PixInsight uses, would you feel having time and desire to re-calibrate without using dark but only with flat and bias? :-or
It might take you to a "sum" more clean from noise to work ...: - |
Una bella Rosetta, dettagli evidenti...vedo solo le stelle poco colorate e cielo un pelo scuro per il mio monitor, di segnale ce n'è molto...la sony è una bella bestia...vedo che usi pixinsight, proveresti avendo tempo e voglia a ricalibrare senza l'uso dei dark ma solo con flat e bias? 
Potrebbe portarti ad una "somma" piu pulita dal rumore su cui lavorare... 
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| sent on February 28, 2017 (12:36) | This comment has been automatically translated (show/hide original)
Thanks Elio, I try to process it at the weekend but do not understand why no dark, doing so I do not get a picture with more noise? Grazie Elio, si provo ad elaborarla nel fine settimana ma non capisco perché senza dark, facendo così non ottengo una immagine con più rumore? |
| sent on February 28, 2017 (18:54) | This comment has been automatically translated (show/hide original)
Hello Daniele
new studies and tests conducted for a doctoral thesis by his friend Matthew Hill (www.cumsidus.org or FB) according to which the use of the dark in the calibration of images taken with recent sensor (type SLR and sony icx sensors etc ...) coupled to the calibration algorithms like the Winsorized sigma clipping, it is not only not necessary but may actually induce noise rather than tear it down ... this provided you do the dithering, good flat and bias for each event / session.
Then as I often say, try not cost anything and already the sum you see if the situation improves or not departing: - |
A greeting Ciao Daniele
da nuovi studi e test condotti per una tesi di laurea dall'amico Matteo Collina (www.cumsidus.org o su FB) secondo la quale l'uso dei dark nella calibrazione di immagini riprese con i recenti sensori (tipo reflex e sensori sony icx, ecc...) in accoppiata agli algoritmi di calibrazione tipo il winsorized sigma clipping, non solo non è necessaria ma potrebbe addirittura indurre rumore anziche abbatterlo... questo a patto di fare il dithering, dei buoni flat e bias per ogni serata/sessione.
Poi come dico spesso, provare non costa nulla e gia dalla somma si vede se la situazione migliora o no in partenza
un saluto |
| sent on February 28, 2017 (19:37) | This comment has been automatically translated (show/hide original)
Very interesting, thank you. Molto interessante, grazie. |
user92328 | sent on August 14, 2017 (15:10) | This comment has been automatically translated (show/hide original)
Great end result and compliments for the really remarkable technique used, just compliments ..
Hello ;-) Grande risultato finale e complimenti per la tecnica usata davvero notevole, solo complimenti..
Ciao |
| sent on August 29, 2017 (9:12) | This comment has been translated
Thanks Salvo! |
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