API error Star alignment

[astroman2]

Hi Team,

I get the following error when doing star alignment with the working mode set to Putative Star matches.  Version 1195. Can anyone help?

StarAlignment: Processing view: m42_7_300s_int_ABE_bg_cc_DBE
Loading reference image:
F:/m42_1/merge3/30sec/CatalogStars_crop.xisf
Loading image: w=12113 h=5876 n=1 Gray Float32
F:/m42_1/merge3/30sec/CatalogStars_crop.xisf:
Noise reduction: done
Structure map: done
Detecting stars: done
596 stars found.
m42_7_300s_int_ABE_bg_cc_DBE:
Noise reduction: done
Structure map: done
Detecting stars: done
537 stars found.
* Distortion correction: Iteration 1 of 20
Matching stars: done
182 putative star pair matches.
*** PixInsight API Error: CreateImageWindow(): Low-level API function error
API error code = 64:
Invalid sample format
<* failed *>

Regards

Scott

[Juan Conejero]

This cannot be reproduced on any platform. I would need to have the images (reference and target) to say something more. As always, without the images we have no way to help.

[astroman2]

Juan,

Attached is link to two files (sorry 450MB) with which this error occurs.

https://www.dropbox.com/s/ne7glfdzn3qwjlm/CatalogStars_crop.xisf?dl=0
https://www.dropbox.com/s/hj2nf85wqfzwnu7/m42_7_300s_int_ABE_bg_cc_DBE.xisf?dl=0

Error only occurs when reference image is to a "file".  Works ok with reference image to  a "view".  Platform is Windows 7.

See details below:


StarAlignment: Processing view: m42_7_300s_int_ABE_bg_cc_DBE
Loading reference image:
F:/m42_1/merge3/30sec/CatalogStars_crop.xisf
Loading image: w=12113 h=5876 n=1 Gray Float32
F:/m42_1/merge3/30sec/CatalogStars_crop.xisf:
Structure map: done
Detecting stars: done
848 stars found.
m42_7_300s_int_ABE_bg_cc_DBE:
Structure map: done
Detecting stars: done
589 stars found.
Matching stars: done
235 putative star pair matches.
*** PixInsight API Error: CreateImageWindow(): Low-level API function error
API error code = 64:
Invalid sample format
<* failed *>

StarAlignment: Processing view: m42_7_300s_int_ABE_bg_cc_DBE
CatalogStars_crop:
Structure map: done
Detecting stars: done
848 stars found.
m42_7_300s_int_ABE_bg_cc_DBE:
Structure map: done
Detecting stars: done
589 stars found.
Matching stars: done
235 putative star pair matches.
Blending grayscale bitmap: done
Blending bitmap: done
15.279 s

Regards

Scott

[msmythers]

Scott

I tried with the default settings in Star Alignment but that didn't work. My next step was to use very aggressive settings and that did. I would not normally use anything near these settings but I just wanted to show that StarAlignment would work.


Mike

[msmythers]

Scott

I just saw where your error occurs when using the reference image from a file. I ran the StarAlignment again with the catalog star file from the hard drive and not as a view. I had no problem. I am also running Windows 7 and the latest PI.

Mike

[astroman2]

Mike,

Thanks for the info. I eventually solved it too. It was during the hunt for a solution and only whilst using the "putative star matching' working mode that I got the error.

Regards
Scott