reference image for mono preprocessing

dmead · June 19, 2023, 4:46pm

Hi, I have a feature request.

For my use case (and for other reasons I won’t get into) I have a bunch of field rotation between my channels. I’m running RGB with no lum.

After RGB composing my image, i notice that there is field rotation between the channels. I believe this is a missing feature in siril. I have two suggestions to fix this.

implement field rotation compensation in RGB composting.

this would be the simplest way. the docs say that the RGB composition step does not deal with rotation or registration between channels. using full blown registration here may just fix it.

the UI and calls to register need a reference image parameter.

the sequences in siril are a nice feature, but unless i’m missing a way to insert a ref into a sequence for registration and them remove it for stacking I think this could go a long way

github.com

gnthibault/siril/blob/master/scripts/Mono_Preprocessing.ssf#L62


      
          
          
# Convert Light Frames to .fit files
          cd lights
          convert light -out=../process
          cd ../process
          
          
# Pre-process Light Frames
          preprocess light -dark=dark_stacked -flat=pp_flat_stacked
          
          
# Align Lights
          register pp_light
          
          
# Stack calibrated lights to result.fit
          stack r_pp_light rej 3 3 -norm=addscale -output_norm -out=../result
          
          
cd ..
          close

on this like i would like to be able to call register

thats it! thanks for reading and making this. Love it.

lock042 · June 19, 2023, 6:58pm

Hello, the feature your asked is already coded. But it will be part of the 1.4.0 version. Not the 1.2.0

dmead · June 20, 2023, 3:37pm

excellent!

if anyone is reading this i managed to get by with sticking my stacks in a sequence and registering them together. the only annoying bit was having to remember which color was which when it gets numbered in the seq.

great work on siril though. i find that this is the big missing feature for me.

lock042 · June 20, 2023, 4:59pm

The current version of Siril has a RGB script too.

vinvin · June 20, 2023, 7:50pm

This is somewhat documented and indeed annoying.