To increase signal to noise, you will need to combine multiple
images of the same field. To do that you might need to align the
stack first using the Stack Align () button
above the image. After the stack is aligned, go to the AIJ Toolbar
and select Image->Stacks->Z-project and select a combination
method such as average or median.
If you simple want to smooth an image for cosmetic purposes, go to
the menus above an image and select Process->Smooth image/stack.
You can repeat this command to add more smoothing. Alternatively, go
to AIJ Toolbar->Filters->Gaussian Blur and select the amount
of smoothing you need.
On 6/12/2014 1:34 PM, Shubham KUmar
[via AstroImageJ] wrote:
How to remove noise in an Astrophotograph ? i.e. how
to increase signal to noise ratio ?
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