Define segmentation when it is first mentioned

[jni]

While reading this lesson, I noticed that segmentation was used but not clearly defined.
I think a simple definition will help learners understand what they are working towards.

[github-actions]

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⏱️ Updated at 2026-04-21 07:53:26 +0000

[K-Meech]

Thanks for the contribution @jni ! I agree - a clearer definition of segmentation would be great to start this lesson.

I've made some very minor suggestions on wording below. @marcodallavecchia / @uschille - would be good if you could also take a quick look.

[K-Meech]

Suggested change

	which is the partitioning of an image into disjoint regions, or *segments*.
	The different segments can then be analyzed separately.
	where an image is split into different regions, or *segments*.
	These segments can then be analyzed separately.

I feel like the words 'partitioning' and 'disjoint' may not be familiar to all learners? How about using 'split' / 'different' as simpler terms?

[K-Meech]

Probably good to add a blank line above 'In thresholding...' to start a new paragraph. Makes this section easier to read in the rendered docs.