Analysis fails at 99% when “Remove Background” is enabled and CLAHE is disabled in pre-processing

[antoinepatalano]

Summary

During the Analyze step, the process fails near 99% completion when the Remove Background option is enabled and CLAHE is disabled under Pre-processing filtering. The issue appears to be linked to the background subtraction routine, which causes the analysis to crash or hang before finishing.

Steps to Reproduce

1. Go to the Analyze step.

2. In Pre-processing filtering, set the following options:

   • ✅ Remove Background → Enabled
   • ⬜ CLAHE → Disabled

3. Run the analysis on all images.

4. Observe that processing reaches ~99% and then fails.

Expected Behavior

The analysis should complete successfully with background subtraction applied to all images.

Actual Behavior

The process halts or fails at 99%, without completing or saving the final output.