Guillaume Witz

I saw that painting just a couple weeks ago in Florence. Stunning! I had to capture the incredible details of the dress.

Personal essay, weekend edition: I’m Skeptical of AI Disclosures blog.stephenturner.us/p/ai-disclos...

🚨🚨🚨 napari 0.9.0 is out! 🚨🚨🚨 This is a huge release for us and for our community, with over 30 people contributing new features, improvements, and bug fixes in the 6 weeks since 0.8.0! Release notes here: napari.org/stable/relea... and some highlights in the thread below! 👇

Eclipseset?

Do you want to learn more about OME-Zarr viewers, where they stand today and what's being developed at the moment? On August 24th at 4pm CEST, we will hear about 3 different OME-Zarr viewers and user stories for each. www.biovisioncenter.uzh.ch/en/events/Up... (1/5 🧵)

🔬 Tutorial Spotlight: Build custom image analysis tools without starting from scratch. Tim shows you napari's power for microscopy, satellite data, and everything between 🛰️ Extend, visualize, annotate like a pro! #SciPy2026 🔗 scipy2026.scipy.org

Very interesting job with very nice people! What’s more to ask?

I’m trying to figure out (like everyone else) how to reasonably use LLMs both for my work and teaching. This is fantastically written and clearly articulates a lot of ideas and concerns I had vaguely in mind. I’m considering suggesting this as a read to participants in my scientific coding courses.

🔬 Registration is open for our pilot Introduction to napari Workshop! napari is a powerful open-source image viewer for scientific data analysis in Python. This hands-on workshop will get you exploring multi-dimensional datasets fast. #napari #Python #ImageAnalysis #DataScience #OpenSource

Let's get ready for a full month of training in image analysis in @pasteur.fr , this summer! Are you interested in learning how to do bioimage analysis? For light microscopy? for cryo-EM? And for cellular cryo-EM? Stay tuned, Pasteur offers access to THREE courses, this June. 👇🎓

Sounds like this could be a very cool (in all meanings of the word 😅) postdoc!

🚨 Job Alert! 🚨 We have an opening at our Microscopy Core Facility in Turku 🇫🇮. If you love imaging 🔬 and helping scientists succeed, we want you! 👇 abo.rekrytointi.com/paikat/index... #Microscopy #ScienceJobs #CoreFacility #Imaging @turkubioscience.bsky.social

Time is running out to apply for this year's @royalmicrosoc.bsky.social Intro to Image Analysis course in Cardiff - deadline is tomorrow! Spread the word!

Tracking coordinated cellular dynamics directly from images -- New method paper by labmates @bgraedel.bsky.social & @macdobry.bsky.social ! Python package & @napari.org plugin, all the good stuff: Paper: doi.org/10.1242/jcs.... Code: github.com/pertzlab/arc... Plugin: github.com/pertzlab/arc...

For Python package management I use a mixture of pixi, uv and conda depending on the task I'm doing. I wrote up a long form post about the history of these tools, why each one exists, and why I settled on these choices in my workflow. jacobtomlinson.dev/posts/2025/p...

We had an amazing OME-NGFF hackathon last week, Wednesday to Friday, following the inspiring OME-NGFF symposium. What a fantastic week! It’s hard to describe how motivating it is to be surrounded by so many talented, curious & friendly people who care deeply about open, FAIR bioimaging data. 1/14 🧵

Community information is here napari.org/stable/commu...

Happy Halloween from the napari team!

It was a fantastic opportunity to finally meet the people behind this software that I have been using for years and is so important for my work! A big thank you to all core developers who were so welcoming, and patiently guided participants in their attempts to contribute back to napari!

This was a very interesting talk! If you work in a core facility you’ll find plenty of good ideas about organisation and/or be reassured that certain things, like planning workload, are difficult for everyone, even the best organized.

Hi all. This is the recording of the online seminar I gave following the kind invitation of #GLOBIAS. I share what we have learned delivering #BioimageAnalysis services in the IAH core facility of the @institutpasteur.bsky.social research.pasteur.fr/en/team/imag... ⬇️

Job alert! We are looking for a bioimage analysis to work in an image analysis core facility in beautiful Paris. Can I ask you to share this opportunity with your networks? See also on the forum: forum.image.sc/t/research-e...

napari 0.6.5 is out! 🚀 Rapid-fire highlights are: colorbar overlay, custom startup script, and better and prettier documentation! Check out the full release notes here: https://napari.org/dev/release/release_0_6_5.html

BioImage analysis friends - King's are recruiting for a full-time, permanent facility position! Come and work with fun microscopes and fun people (and me!) - please share! www.kcl.ac.uk/jobs/126345-...

📣 We’re hiring, please RT! Fully funded 4-year PhD position in our CVPD group at @informatikaehu.bsky.social! Research at the intersection of AI, deep learning & bioimage analysis. 🧠🔬 📅 Applications open Oct 6 (deadline: ~Oct 27) 📍 San Sebastian, Spain. 👉 cvpd.github.io/post/2025-09...

We (with @nicolasdray.bsky.social @zenlabpasteur.bsky.social) are happy to release officially FishFeats, our #napari plugin to streamline 3D smFish/RNA quantification! 🎊 Available here: github.com/gletort/Fish... user documentation: gletort.github.io/FishFeats/

Are you working with OME-Zarrs in Switzerland? We're running a series of community events in the context of the BioFAIR project of the BioVisionCenter: Monthly Open Bioimaging Practices Meetups with presentations by us & community members. Starting off with 3 cool events this fall (see image) (1/6)

Come and work with us 5-year position available for a University Researcher in Bioimaging 1.11.2025-31.12.2030 abo.rekrytointi.com/paikat/index...

Post an image from your summer that confers peace

Automated optogenetic control of hundreds of cells in parallel. Each cell is individually steered, collectively acting as a "tissue printer". Preprint & code out! www.biorxiv.org/content/10.1...

“New paper out 🎉 We built a system to automate optogenetic cell control across scales. For the demo, we made the cells spell my name — because if you can’t use science to feed your ego, what’s the point? 😎🧫✨”

A very good idea! I’m deeply skeptical current models can find “new physics” but this would be a good test. Surprised nobody has done this yet. Probably not in the interest of most model trainers to highlight their limits and dehype them. Clarification: I do think that LLMs can be very useful tools!

You thought the publication business had reached the bottom with predatory journals, insane publication fees, data harvesting etc? No, it can dig deeper 🎉! #justpreprint

"a fascinating case study on the limits of AI in biology and the harms of current publishing incentives" rachel.fast.ai/posts/2025-0...

New release: napari-omero 0.5.0 😀@openmicroscopy.org @napari.org thanks to some big contributions from @psobolewskiphd.bsky.social , @will-j-moore.bsky.social and of course @talley.codes. Some features in spotlight 👇 First: napari-omero now supports lazy loading of image pyramids from OMERO🔺:

To look into: a Python alternative to ZEMAX... github.com/HarrisonKram...

And it's finally here! napari 0.6.0 is out on PyPI and conda-forge! 🥳 We've had a few threads about this release already but let's recap with some highlights: 🧵

CellPhePy is now available 🎉🎉🎉 in the journal of #microscopy. A python version for #CellPhe. See doi.org/10.1111/jmi.... Thanks @ukri.org and @wellcometrust.bsky.social for funding @globias.bsky.social @globalbioimaging.bsky.social @eurobioimaging.bsky.social @bioimaginguk.bsky.social

🚀 We’re very excited to share our latest preprint on OME-Zarr! 🚀 Our report on the 2024 OME-NGFF Workflows Hackathon is a deep dive into the status of OME-Zarr and the great work that happened last November at the BioVisionCenter in Zurich. 🔗 Read the preprint: osf.io/preprints/bi... 🧵 (1/15)

PREPRINT OUT ✨ "hack" your microscope to work as a 3D printer! print micrometer sized features at cm scale. a method for easy and cheap microfabrication, with a focus on biological applications. THREAD ↓ www.biorxiv.org/content/10.1...

Announcing PathoSAM, our foundation model for nucleus segmentation in histopathology. PathoSAM supports interactive and automatic nucleus segmentation (instance and semantic). See segmentation on a WSI from openslide, check out arxiv.org/abs/2502.00408 or read on for details.

I recently visited TU Dresden for two guest lectures about Prompt Engineering, RAG, Agents and Multi-Modal #LLMs. thanks to Simon Razniewski @scadsai.bsky.social for having me! My slides are available #openaccess 💻🤖🔓 zenodo.org/records/1469...

Very useful thread on how to efficiently use LLMs to write. As usual, reality is not a binary choice between “let the model write your entire paper” and “never ever use a model”.

What do bacterial cells do when they run out of nutrients? Although most bacterial studies focus on cells in exponentially growing states, in the wild bacteria likely spend most of their time slowly starving to death. 1/n www.biorxiv.org/content/10.1...

The Image & Optics Facility @ Institute of Science and Technology Austria is expanding it’s image analysis services and has a vacant position for a service oriented *Image Analysis Specialist* with a strong interest for data infrastructure organization🔬🧑‍💻📈 - sharing is much appreciated

Has AI really learnt "the language of life"? If we compare "sequence prediction" AI with actual research on genomic mechanisms, we get a sense of what "understanding" does and doesn't mean.

Interesting discussion and an important point as I think these two aspects are often conflated: scientists are not software engineers and are not supposed to create perfect code. But it should be usable! Packaging can be daunting, so ask a researcher software engineer at your university for help!

Really a no brainer. Another thing one can do: when asked to review a paper that is not pre-printed, tell editor you only review preprinted papers and suggest authors submit a preprint first.

Forget the click-baity title. This almost 4 hour long collection of short musical fragments with fun commentary is a wonderful guide through the last 400 years of Western music. Bet you'll discover something wonderful you hadn't known about. www.youtube.com/watch?v=qEzm...