Merge branch 'master' into 'main'

.gitignore

ex0/code/Blue.png

ex0/code/Green.png

ex0/code/Red.png

ex0/code/img.jpg

ex0/code/img.png

ex0/code/main.py

ex0/code/small.png

ex1/code/Skeleton/A.png

ex1/code/Skeleton/B.png

ex1/code/Skeleton/C.png

ex1/code/Skeleton/blox.jpg

ex1/code/Skeleton/corners.png

ex1/code/Skeleton/dIdx.png

ex1/code/Skeleton/dIdy.png

ex1/code/Skeleton/edges.png

ex1/code/Skeleton/main.py

ex1/code/Skeleton/reference/A.png

ex1/code/Skeleton/reference/B.png

ex1/code/Skeleton/reference/C.png