Not getting enough ...
 
Share:
Notifications
Clear all

2022-05-29: APP 2.0.0-beta2 has been released !

Release notes

Download links per platform:

windows 2.0.0-beta2

macOS x86_64 2.0.0-beta2

macOS arm64 M1 2.0.0-beta2

Linux DEB 2.0.0-beta2

Linux RPM 2.0.0-beta2

[Sticky] Not getting enough colour in my final integrated stack, how to increase?

Page 2 / 2

(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4918
 

Since then I haven't seen any complaints regarding this so I'm assuming it became better. 🙂


ReplyQuote
(@chrisl)
Brown Dwarf Customer
Joined: 2 years ago
Posts: 8
 

Hello,

I experienced better colour data in the stack when NOT using LNC, untick "local normalization rejection" in (6) and when NOT ticking neutralizing background in (5).

To me it seems that these three options reduce/flatten the colours in your stack. I guess any software has a hard time distinguishing between wanted signal and unwanted noise/light pollutin.

And: I do not stretch my data in APP, but in Photoshop (I only use the light pollution, background calibration and star calibration of APP).

Chris


ReplyQuote
(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4918
 

LNC normalizes the background very nicely for all stacks, resulting in a much more even frame. Neutralize background in 5) can actually influence nebulosity, but you can fully restore that when calibrating the background in the tools 9) menu. On the right hand side there are presets for stretching and lower down for color saturation, where you can saturate with protecting the background.

A more detailed explanation of the right hand side can be seen when clicking the red question mark.


ReplyQuote
(@rfmarshall)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 6
 

Here is a link I did on FB and need help with the same issue.


ReplyQuote
(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4918
 

I can't access that group as it's private, can you post the screenshot here?


ReplyQuote
(@rfmarshall)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 6
 

@vincent-mod

DCB2300A 9168 4B91 8B05 BC5CC746D015

 


ReplyQuote
(@rfmarshall)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 6
 

I am new to APP and it is probably something I am doing wrong but thought I would post here to see. The image was taken with a canon 60da.


ReplyQuote
(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4918
 

So you left everything standard and the data should be from a color camera I assume? If so and you do see an RGB spectrum (top right, red blue and green graph) you may need to add saturation. On the right side of  APP you have a switch to turn on saturation. Then under that there are sliders called "Sat." and "Sat. Th.". Sat is for the amount of saturation, to the right adds more, Sat. Th. is the lower threshold protecting the background noise from being saturated.


ReplyQuote
(@rfmarshall)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 6
 

@vincent-mod, I really appreciate the help. Yes it is from a modified DSLR Canon 60da, I did check the saturation box and played with the sliders, I will give it another try this evening and double check everything and let you know how it goes, thanks.


ReplyQuote
(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4918
 

No problem, otherwise I'll have a look at processing that data as well to point you to some things maybe.


ReplyQuote
(@rfmarshall)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 6
 

Hello Vincent, I made sure everything was default and went thru the whole process again and everything seems fine, getting plenty of color now, not sure what is different this time but I really appreciate the fast responses. I purchased APP full version a few days ago and I am sure I will enjoy using it, thanks again.


ReplyQuote
(@col)
Red Giant Customer
Joined: 2 years ago
Posts: 111
 

While and old post, it is still useful. Color-preserving arc sinh stretches have their uses, but integration time works for me in this sense with some tweaks to the saturation options in APP. I am using an OSC camera, 16-bit native and large full well (ASI2600MC). the increase color, especially depth of color in the image I find that HSL selective color tool to remove chrominance noise and background be desaturating all colors between  0 - background is a good first step. Then, in a standard 15% saturation (for example), I reduced the saturation threshold to about 5-% and that bring up a lot of the color depth. Although, I have not seen such a bleached out effect in APP since using the 1.082/3 versions, and I have never used the older versions myself.


ReplyQuote
Page 2 / 2
Share: