Add visualizations to better explain image blurring in episode 6

[chbrandt]

If this pull request addresses an open issue on the repository, please add 'Closes #NN' below, where NN is the issue number.

Closes #221

Please briefly summarise the changes made in the pull request, and the reason(s) for making these changes.

Added figures and respective python code for visualizing the effects of image blurring from a different perspective, as the pixel intensities profile.

If any relevant discussions have taken place elsewhere, please provide links to these.

Issue #221 has all the

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[github-actions]

Thank you!

Thank you for your pull request 😃

🤖 This automated message can help you check the rendered files in your submission for clarity. If you have any questions, please feel free to open an issue in {sandpaper}.

If you have files that automatically render output (e.g. R Markdown), then you should check for the following:

• 🎯 correct output
• 🖼️ correct figures
• ❓ new warnings
• ‼️ new errors

Rendered Changes

🔍 Inspect the changes: https://github.com/datacarpentry/image-processing/compare/md-outputs..md-outputs-PR-292

The following changes were observed in the rendered markdown documents:

 06-blurring.md                                | 144 +++++++++++++++++++++++++-
 fig/3D_petri_after_blurring.png (new)         | Bin 0 -> 112819 bytes
 fig/3D_petri_before_blurring.png (new)        | Bin 0 -> 110601 bytes
 fig/petri-blurred-intensities-plot.png (new)  | Bin 0 -> 25872 bytes
 fig/petri-dish.png (new)                      | Bin 0 -> 119846 bytes
 fig/petri-original-intensities-plot.png (new) | Bin 0 -> 27789 bytes
 fig/petri-selected-pixels-marker.png (new)    | Bin 0 -> 114952 bytes
 md5sum.txt                                    |   2 +-
 8 files changed, 144 insertions(+), 2 deletions(-)

What does this mean?

If you have source files that require output and figures to be generated (e.g. R Markdown), then it is important to make sure the generated figures and output are reproducible.

This output provides a way for you to inspect the output in a diff-friendly manner so that it's easy to see the changes that occur due to new software versions or randomisation.

⏱️ Updated at 2023-08-15 14:38:54 +0000

[tobyhodges]

This is fantastic, @chbrandt, thank you. Almost ready for merge as it is. I have made a few proofreading and stylistic guide edits, and requested one change (to use a different word than "directory").

[tobyhodges]

Thank you for this excellent contribution, @chbrandt. I hope you'll consider making more again in future!

[chbrandt]

@tobyhodges I actually want to participate in the material/content creation in the Carpentries.

[tobyhodges]

This is great to hear, @chbrandt. You can find some general information at https://carpentries.org/involved-lessons/, but I am also happy to answer specific questions by email tbyhdgs at gmail dot com.