[Python] identify the rectangular gums from given images and overlay detected rectangular gums...

[i have given several images like this to identify the rectangular gums and defective gums from the images ][1]

[1]: https://i.sstatic.net/UDZkJW4E.png i have one task given related to image processing. the problem statement is that identify the rectangular gums from given images and overlay detected rectangular gums with green rectangle and defective or non rectangular gums with red rectangle. please give me solution in python for this.

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