File sizes - master files after WBPP. Why the big difference?

Processing
PixInsight Addicts •3 replies•191 views
Peter Christensen avatar
Peter Christensen avatar
When I perform a WBPP I typically get following files:

Why is the masterlight before cropping 917 MB and after cropping "only" 400 MB?
Could anyone explain this to me, please?
/Peter
Wim van Berlo avatar
Wim van Berlo avatar
The uncropped file probably contains the rejection images as well as the integration. Just my guess.

cs,

Wim
Geoff avatar
Geoff avatar
Wim van Berlo:
The uncropped file probably contains the rejection images as well as the integration. Just my guess.

cs,

Wim

Wim is correct. The cropped file only contains the cropped image and an image of the frame for cropping
Peter Christensen avatar
Peter Christensen avatar
I think you are right about that (the rejection files are real picture files, not just rejection info).
Thank both for quick and exact answer!
cs
Peter
Related discussions
WBPP Dark Calibration
Ran into something odd today and could use some help figuring it out. I’ve been using PixInsight and the WBPP script for a while now without issues, but this time my darks seem to be overcorrecting my lights. After integration, there’s a noticeable d...
WBPP Dark Calibration — Ran into something odd today and could use some help figuring it out. I've been using PixInsight and the WBPP script for a while now without issues, b
Apr 26, 2025
Issue in frames calibration?
Hi everyone, this is a long post, but it’s needed to provide proper context. Thanks in advance to anyone willing to read through it and help me figure things out! I’ve been struggling for days with what seems to be a calibration issue (or possibly a ...
Issue in frames calibration? — Hi everyone,this is a long post, but it's needed to provide proper context. Thanks in advance to anyone willing to read through it and help me figure
Jul 8, 2025
Latest WBPP Results with ASI2600 MCP (Celestron 9.25" Edge HD) seem to Indicate a Problem - What am I doing wrong?
Hello- I am imaging at F10 with Celestron 9.25" Edge HD, ASI2600 MCP and EQ6 R Pro mount with Celestron OAG from Bortle 4-5 skies. I use ASIAir Plus, a camera gain of 100 and BIN 3 normally with this set up. Previously I had no issues with the a...
Latest WBPP Results with ASI2600 MCP (Celestron 9.25" Edge HD) seem to Indicate a Problem - What am — Hello- I am imaging at F10 with Celestron 9.25" Edge HD, ASI2600 MCP and EQ6 R Pro mount with Cele
May 31, 2025