LRGB Mosaics

Andrew Macica

I'm reviewing the Horizons->Mosaic course.  I have LRGB panels.  To create the LRGB panels I needed to stretch the luminance and RGB separately and then combine.  My results are nonlinear.  Based on your course and the PixInsight documentation the images need to be linear to mosaic.  Do I need to mosaic the luminance and RGB separately before LRGB combination?  What is the best approach?  I do not want to toss the luminance.  Any recomendations?

Andrew Macica

I think what I am going to do is as follows:

1.  I have created the calibrated, drizzled luminance, linear, plate solved but no BlurXTerminator.

2.  I have created the calibrated, drizzled, channel combined RGB, plate solved but no BlurXTerminator.

3.  I may run SPCC on the RGB before creating the mosaic.

4.  Create separate luminance and RGB mosaics.

5.  BlurXTerminator the luminance and RGB mosaics.

6.  Image solve the RGB and perform SPCC.

7.  M42 is in the mosaics.  STF + HDRMT the luminance.

8.  Masked Stretch the RGB or STF + HDRMT the RGB

9.  LRGB Combination.

9.  Final processing.

Andrew Macica

The steps above are working for me.  While reviewing the Horizons->Mosaic course I came across the IC 4812 LRGB mosaic Telescope Live processing that I had actually viewed a while back.  I am reviewing it again but I have already successfully stitched my Orion Belt Mosaic.  Still it is worth reviewing the IC 4812 videos.

Andrew Macica

Sorry to bother anyone.