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Hello! Any idea how I could improve this image? I feel like I may be missing something... Maybe could be sharpened more or less? Better noise reduction? I struggled to sharpen the dark structures... If anyone wants to play with the data I could try sending u the tiff files. Obviously CC is more than welcome. You wont hurt my feelings  The Rosette Nebula |
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Hi, I am not sure I can provide specific details to such a broad question, however, your overall image looks great to me. There is only so much we can do with such faint objects. Noise is always going to be an issue, which can be mitigated with more time, but you are still going to see it. Obviously noise reduction techniques help too, but the best way is to get more integration time. Sharpness will have plenty of factors. Seeing, transparency, focus etc...So there are factors outside of your control. Sharpening is nothing more than boosting contrast at the pixels around the edges of the structure. Like I said, overall your image looks great, if anything while pixel peeping I can see the stares on the left side look elongated from left to right. May have to do with tilt? Something to look into possibly, but even I do not get obsessive about my stars. It may not be worth fussing with. I am sorry I do not have much more to add, people have a wide range of editing techniques. If anything maybe lighten up the black point a tad? Great image overall though. Keep it up. Dan |
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I agree with Dan: it is a great shot! I use Photoshop so I am not sure if that is what you meant by CC, which I use, but when I "sharpen" I have used a high pass filter (in fact I did on my rosette) or I have even made a monochrome luminance layer and that really helped boost contrast without adding noise. Sometimes I use the"unsharp mask" but I haven't had great success. If you just want to enhance the dark areas you can mask those off and use the camera raw filter and masking brush. Great shot! Tom |
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| Yes, it is a great picture. When one looks at ones own pictures they seem poor, but I bet if the same picture was posted by someone else you would think that the same photo was excellent. There is always a compromise by just fiddling. |
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Great image! Have you ever used Topaz DeNoise ? Works better than any Pixinsight denoising process. Also good for dark structures. They have a free trial version. CS! |
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Also for me it is a good image. Maybe you could enhance the star colors by using an appropriate mask and then using in PI Curves Transformation set on Saturation. For enhancing dark structures you could try Multiscale Linear Tranform with a value of bias not so high (for example +0.1/+0.2) in order to avoid noise. For all these operations it would be better work separately on stars only and nebula only by using Starnet or, much better, StarXTerminator and then combine the two images with Pixelmath.Topaz Denoise is excellent, but is better to use on starless images otherwise it introduces artifacts especially on the faintest stars. |
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| Can you send me a link for the tiff files? |
