preprocessing implementation

[JairMathAI]

correction with the right version

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 2.79%. Comparing base (ba85ae2) to head (5fdfc8e).
⚠️ Report is 23 commits behind head on main.

Files with missing lines	Patch %	Lines
mmv_im2im/map_extractor.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##            main    #114      +/-   ##
========================================
- Coverage   4.40%   2.79%   -1.61%     
========================================
  Files         36      46      +10     
  Lines       2815    4430    +1615     
  Branches       0     727     +727     
========================================
  Hits         124     124              
- Misses      2691    4306    +1615     

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