Semantic Segmentation and Data Sets

D2L Book
1

http://en.diveintodeeplearning.org/chapter_computer-vision/semantic-segmentation-and-dataset.html

2

Thank you for your book, in semantic segmentation chapter, you only load data very confusingly. What happen then with the rest? training, testing, and so on? Where can I find a complete semantic segmentation code example from scratch?

3

In section 12.11 I suppose?