Update the camera calibration app with the visualization of the lens distortion#1918

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s-trinh wants to merge 6 commits intolagadic:masterfrom

s-trinh:feat_calib_tools_displacement_map

Commits on Feb 28, 2026

Display arrows for the "distortion displacement map" at the right and lower extremities of the image.
s-trinh
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Commits on Mar 2, 2026

Save log info into a text file when --save flag is passed. Display the image center (in green) and the camera principal point (in red) in the distortion displacement map image.
s-trinh
committed