I today saw that the maker of StarXTerminator has created a new tool, NoiseXTerminator, first release is for PixInsight only.
Beta testing has started two days ago, so things might even get better before the product is launched.
I have played a bit with the tool and I must say I am quite impressed, it does what it says, it removes noise without much affecting details of the original picture.
It feels like denoising emphasizes a very little too much for my liking the very faint areas with little tonality differences but I only see this when comparing 1:1. I'd do the same thing manually later to improove micro contrast, so I am not overly stressed by that.
Here's an example of an unprocessed, only stacked image of the Sii channel of Elephant's Trunk, cropped to a reasonable size.
The only steps applied were (in linear mode) StarXTerminator followed by NoiseXTerminator (Denoise 0.7, Detail 0.4) and then a default stretch with Screen Transfer Function to be able to save as jpg.
I also took the stretched Image and let it run through Topaz Denoise, results are pretty much the same, it only needs a very light sharpening to the NoiseXTerminator picture to simulate the sharpening done by Topaz.
So we now can have the noise reduction on similar level as Topaz Denoise in an unstretched image, for me this is something totally amazing....
Original Sii (Crop to a 4000x3000px region):

NoiseXTerminator:

Topaz Denoise:

NoiseXTerminator + little sharpening:

Beta testing has started two days ago, so things might even get better before the product is launched.
I have played a bit with the tool and I must say I am quite impressed, it does what it says, it removes noise without much affecting details of the original picture.
It feels like denoising emphasizes a very little too much for my liking the very faint areas with little tonality differences but I only see this when comparing 1:1. I'd do the same thing manually later to improove micro contrast, so I am not overly stressed by that.
Here's an example of an unprocessed, only stacked image of the Sii channel of Elephant's Trunk, cropped to a reasonable size.
The only steps applied were (in linear mode) StarXTerminator followed by NoiseXTerminator (Denoise 0.7, Detail 0.4) and then a default stretch with Screen Transfer Function to be able to save as jpg.
I also took the stretched Image and let it run through Topaz Denoise, results are pretty much the same, it only needs a very light sharpening to the NoiseXTerminator picture to simulate the sharpening done by Topaz.
So we now can have the noise reduction on similar level as Topaz Denoise in an unstretched image, for me this is something totally amazing....
Original Sii (Crop to a 4000x3000px region):

NoiseXTerminator:

Topaz Denoise:

NoiseXTerminator + little sharpening:
