Author Topic: LinearFit Incompatible Geometry Error  (Read 772 times)

Offline llpastro

  • PixInsight Addict
  • ***
  • Posts: 196
    • View Profile
    • Sonoran Dark Skies
LinearFit Incompatible Geometry Error
« on: 2017 March 17 14:07:08 »
When I try to apply an RGB to a Lum using LinearFit, I get an incompatible geormetry message.  These are two images that were successfully used to create an LRGB using LRGBCombination.  What can cause this message?

Larry
AP 140 Refractor
SBIG ST-10XME
AP Mach 1 Mount
ATS Portable Pier
Tucson, Arizona

Offline pfile

  • PTeam Member
  • PixInsight Jedi Grand Master
  • ********
  • Posts: 4472
    • View Profile
Re: LinearFit Incompatible Geometry Error
« Reply #1 on: 2017 March 17 14:15:33 »
geometry includes the # of planes in the image... you can't linear fit a 3-plane image to a 1-plane image...

i guess you could extract the L* from the RGB and then linear fit that to the L...

rob

Offline llpastro

  • PixInsight Addict
  • ***
  • Posts: 196
    • View Profile
    • Sonoran Dark Skies
Re: LinearFit Incompatible Geometry Error
« Reply #2 on: 2017 March 17 15:43:43 »
Thanks, that eliminated the error.  I will try to remember the third dimension of an rgb.

Larry
AP 140 Refractor
SBIG ST-10XME
AP Mach 1 Mount
ATS Portable Pier
Tucson, Arizona