Fix Blender scripts to print camera frame as in computer vision convention

[s-trinh]

I am using these as template code for Blender works and stumbled on this mistake.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.82%. Comparing base (fe79ec1) to head (ae330f6).
Report is 7 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1505   +/-   ##
=======================================
  Coverage   53.82%   53.82%           
=======================================
  Files         442      442           
  Lines       53850    53850           
=======================================
  Hits        28987    28987           
  Misses      24863    24863           

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