Hi,
wow, this is really an hard to manage image!
concerning the white balance setting, now I found the one you are mentioning and I don't think this could be a problem, because it is exactly what Startools expects for input data.
I could see wipe module operating without too much success and I'm wondering whether the problem is in the image been not calibrated, I guess you did not use flats/darks and so on, isn't it? From what I know, wipe is able to remove gradients, vignetting and uniform background, while this seems a very irregular one
Anyway, this is the best I could do
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- 7th Aug 2017 M13 2nd go from DSS.jpg (478.08 KiB) Viewed 8348 times
(tiff file here:
https://www.dropbox.com/s/ph0tzhrzq93c9 ... .tiff?dl=0)
and this is the log file
Code: Select all
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StarTools 1.4.327
Sun Aug 20 14:06:35 2017
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File loaded [/Users/morsini/Downloads/7th Aug 2017 M13 2nd go from DSS.FTS].
---
--- Auto Develop
Parameter [Ignore Fine Detail <] set to [Off]
Parameter [Outside ROI Influence] set to [15 %]
--- Crop
Parameter [X1] set to [916 pixels]
Parameter [Y1] set to [1104 pixels]
Parameter [X2] set to [4365 pixels (-838)]
Parameter [Y2] set to [3736 pixels (-256)]
--- Wipe
Parameter [Mode] set to [Correct Color & Brightness]
Parameter [UNKNOWN] set to [No]
Parameter [Precision] set to [256 x 256 pixels]
Parameter [Dark Anomaly Filter] set to [1 pixels]
Parameter [Drop Off Point] set to [0 %]
Parameter [Corner Aggressiveness] set to [100 %]
Parameter [Aggressiveness] set to [75 %]
--- Develop
Parameter [White Calibration] set to [Use Stars]
Parameter [Gamma] set to [1.00]
Parameter [Skyglow] set to [0 %]
Parameter [Digital Development] set to [66.39 %]
Parameter [Blue Luminance Contrib.] set to [100 %]
Parameter [Green Luminance Contrib.] set to [100 %]
Parameter [Red Luminance Contrib.] set to [100 %]
Parameter [Dark Anomaly Headroom] set to [5 %]
Parameter [Dark Anomaly Filter] set to [Off]
--- Wipe
Parameter [Mode] set to [Correct Color & Brightness]
Parameter [UNKNOWN] set to [No]
Parameter [Precision] set to [256 x 256 pixels]
Parameter [Dark Anomaly Filter] set to [1 pixels]
Parameter [Drop Off Point] set to [0 %]
Parameter [Corner Aggressiveness] set to [100 %]
Parameter [Aggressiveness] set to [75 %]
--- Bin
Parameter [Scale] set to [(scale/noise reduction 70.71%)/(200.00%)/(+1.00 bits)]
--- Color
Parameter [Cap Green] set to [To Brown]
Parameter [Bias Slider Mode] set to [Sliders Reduce Color Bias]
Parameter [Style] set to [Scientific (Color Constancy)]
Parameter [LRGB Method Emulation] set to [Straight CIELab Luminance Retention]
Parameter [Dark Saturation] set to [2.00]
Parameter [Bright Saturation] set to [Full]
Parameter [Saturation Amount] set to [200 %]
Parameter [Blue Bias Reduce] set to [1.36]
Parameter [Green Bias Reduce] set to [1.42]
Parameter [Red Bias Reduce] set to [1.53]
Parameter [Mask Fuzz] set to [1.0 pixels]
--- Wavelet De-Noise
Parameter [Scale 1] set to [90 %]
Parameter [Scale 2] set to [90 %]
Parameter [Scale 3] set to [90 %]
Parameter [Scale 4] set to [90 %]
Parameter [Scale 5] set to [0 %]
Parameter [Mask Fuzz] set to [1.0 pixels]
Parameter [Scale Correlation] set to [6]
Parameter [Color Detail Loss] set to [12 %]
Parameter [Brightness Detail Loss] set to [12 %]
Parameter [Grain Size] set to [2.9 pixels]
Parameter [Read Noise Compensation] set to [Off]
Parameter [Smoothness] set to [80 %]
File saved [/Users/morsini/Downloads/7th Aug 2017 M13 2nd go from DSS.tiff].
as you can see, I used wipe twice which is highly unrecommended (and maybe this is a sign of having an image with problems, don't worry, it happens: it occurred to me too ... several times!)
I've also looked at your stacking settings and I didn't see anything "dangerous", the look like mine
Here are a list of recommendations:
1. use more than two frames to reduce noise effectively, go for tens (50-100 for example)
2. use "normal" stacking mode, in any case it it very difficult to handle the image parts that do not overlap and you will end up cropping them anyways
3. ... for the same reason try to use aligned frames, with a computer connected to the imaging system reframing "accurately" is a matter of 10 minutes and the "loss" of field is minimal. Here is an example of stacked frames across 4 nights, and, as you can see, the lost part is minimal
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- 20170818_NGC7000_dss_2.jpg (326.95 KiB) Viewed 8348 times
4. do the calibration frames: lights, dark, darkflats and bias. I know that these are boring things but the are fundamental if you want a good final image.
5. your image show partial star trails: you need better guiding or, if you are shooting from a fixed tripod, you need to lower your exposure time a little, again, having a computer connected to the imaging system helps a lot because you can examine the frames with a screen bigger than your camera LCD
good luck and clear skyes
Michele