Deconvolution...a black beast

[nmontec]

Hello All,

after being a while off PI and image processing, I'd like to go back and process some of the images I have got into my hard disk. I am becoming mad with deconvolution. I followed almost all the suggested tutorials, but still I can't get hold of it.
For instance this an image of mine of a galaxy before deconv.
before.jpg and after.jpg show you my poor results on the matter....

[pfile]

juan just posted a huge new tutorial on this. looks like you need to enable deringing.

http://pixinsight.com/examples/M81M82/index.html

rob

[nmontec]

Yes, that's what I did, trying the tutorial in front of my pc while processing mine. That was the result... 

[GJL]

Perhaps this tutorial

http://mike-wiles.blogspot.de/2013/08/pixinsight-deconvolution.html


Gerhard

[pfile]

the thing is, the deringing parameters, etc. are heavily image dependent. in this case you need to increase the global dark deringing parameter - where it's set it's having no effect. if you increase it too much your output image will be completely corrupted. the challenge is to find the setting where deringing is accomplished and there are no artifacts in the image.

rob

[nmontec]

Thank you pfile-Rob Moving around the global dark deringing parameter did the job.   

[Geoff]

Let's see the result.