motocamp Posted October 17, 2015 Share Posted October 17, 2015 Hi Forum, I'm just back from my holidays on La Palma and took a lot of pictures from the night sky. In order to get the best result, I usually took 3 pictures from a scene to reduce noise and hot pixels to optimize the image quality. I searched to find an app to stack the images and combine them to one perfect image, but there is no app which satisfied me. Here I will try it with Affinity Photo but need your help. Is it possible to stack images to optimize a night sky scene (reduce noise, remove hot pixels, consider star movement)? The result should be an image with dotted stars, not a track. A Tutorial would be very nice :-) Thank you. Cheers, René. Quote Link to comment Share on other sites More sharing options...
Staff Callum Posted October 17, 2015 Staff Share Posted October 17, 2015 Hi Motocamp, Welcome to the Forums :) Our latest Customer Beta Build supports importing stacks you can download it here. Once downloaded you can go to File and then New Stack this should create the desired effect. I hope this helps :) C Quote Please tag me using @ in your reply so I can be sure to respond ASAP. Link to comment Share on other sites More sharing options...
anon1 Posted October 17, 2015 Share Posted October 17, 2015 I tried it out and did not get a great result (although I have to say that I just gave it some minutes) The plant in front moved and gets blurry I found "maximum" option not to bad but of course you then get star tracks so this does not really work. The thing is that the stack aligns the images but it does not distort the actual layer .... It distorts it in a linear way - don't know how to say it but it can't make every point fit at the same time. See how it goes for you though ... Quote Link to comment Share on other sites More sharing options...
motocamp Posted October 17, 2015 Author Share Posted October 17, 2015 Hi, thank you for your fast response. I tried different settings. Median should work fine, but the result is very dark. A lot of stars got lost. A good result gave Total, but the movement of the stars is not eliminated. Look here: This was my first try, without any other techniques. Cheers, René Quote Link to comment Share on other sites More sharing options...
anon1 Posted October 24, 2015 Share Posted October 24, 2015 http://www.cambridgeincolour.com/tutorials/image-averaging-noise.htm just found this page the median stack option would have probably been a bad choice not sure if we can request something like "neat image" from AP or not but it would be definitely nice to have in this package, the results do look good (although there clearly is a sacrifice in image details) and it´s all expensive in comparison to AP itself so I´ll not request too much ronnyb 1 Quote Link to comment Share on other sites More sharing options...
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