'what is an image?' episode

[K-Meech]

For https://github.com/HealthBioscienceIDEAS/microscopy-novice/issues/17

This adds a first draft of the 'what is an image?' episode. This aims to introduce image basics like pixels, dimensions, data types... It was harder to write exercises for this one while avoiding as much coding as possible - so let me know if any need changing / you have any suggestions for alternative exercises.

It's probably best to build this branch locally so you can see all the images + text together with the proper formatting.

[github-actions[bot]]

Thank you!

Thank you for your pull request :smiley:

:robot: 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:

• :dart: correct output
• :framed_picture: correct figures
• :question: new warnings
• :bangbang: new errors

Rendered Changes

:mag: Inspect the changes: https://github.com/HealthBioscienceIDEAS/microscopy-novice/compare/md-outputs..md-outputs-PR-26

The following changes were observed in the rendered markdown documents:

 fig/array.png (new)                | Bin 0 -> 33884 bytes
 fig/console.png (new)              | Bin 0 -> 15190 bytes
 fig/coordinate-system.png (new)    | Bin 0 -> 197957 bytes
 fig/coordinates-on-image.png (new) | Bin 0 -> 66659 bytes
 fig/coordinates.png (new)          | Bin 0 -> 68767 bytes
 fig/human-mitosis-napari.png (new) | Bin 0 -> 203878 bytes
 fig/pixel-value.png (new)          | Bin 0 -> 139333 bytes
 md5sum.txt                         |  25 +-
 what-is-an-image.md (new)          | 558 +++++++++++++++++++++++++++++++++++++
 9 files changed, 571 insertions(+), 12 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.

:stopwatch: Updated at 2023-12-13 16:10:07 +0000

[davecash75]

Thanks @K-Meech. Will look at this this week!

[K-Meech]

@davecash75 @dpshelio I've made a new version incorporating your suggestions - could you take a look and let me know if anything else needs changing? Thanks!