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]

Thank you!

Thank you for your pull request 😃

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⏱️ Updated at 2026-04-27 22:25:44 +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]

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.

[marcodallavecchia]

thanks for the contribution @jni!

I agree with @K-Meech that the definition would fit well in the beginning of the lesson (and I cannot believe we didn't have one so far).

@K-Meech I agree with both of your suggestions, for me you can proceed with applying the suggestions and accept the PR.

[K-Meech]

Great! @jni - are you happy to make the small changes suggested above? Then we can get this merged 😄

[uschille]

Thanks @jni for this contribution. I agree with @K-Meech's suggestions.

[jni]

Thanks all! Yes, good suggestions. It seems this is ready to go then! 🙏

[uschille]

Thanks @jni - looks good to me 👍