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KEYNOTE / Robert Erdmann

PyCon US
Talks
YouTube
4 HN users recommended this talk3 months2021–2024 score 4
Years with an HN recommendation, 2007–2026

HN commenters recommend it as a technically jaw-dropping talk, and it is the standard reference whenever the Night Watch gigapixel images come up.

Robert Erdmann, a materials scientist at the Rijksmuseum, gives a PyCon keynote on the ultra-high-resolution imaging of Rembrandt's Night Watch. He covers the automated gantry camera system, the Python software that drives it, and the large volumes of image data involved.

“This was the first talk I immediately felt the urge to share with multiple co-workers & friends.” (HN, 2021)

3 strong recommendations · 1 recommendations · 3 citations · Talks

7 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@stefanpie Jun 2021 Strongly recommends
on HN thread The Night Watch: The Missing Pieces
Robert Erdmann also gave a keynote talk at PyCon US 2021 about how they used Python for most of digitization and processing of the Night Watch (aka Operation Night Watch). Fascinating talk with tones of technical details. Link: [this video]
Fascinating technical details of digitizing the Night Watch with Python.
@rocmcd Dec 2021 Strongly recommends
on HN thread Rijksmuseum to Stage the Largest Vermeer Exhibition in 2023
I can’t hear about the Rijksmuseum without thinking of the presentation Rob Erdmann did at Pycon on how they imaged Rembrandt’s Night Watch: [this video] Incredible work being done there. I’m glad to see they’re continuing to make headlines.
Incredible imaging work on Rembrandt's Night Watch.
@oqb23 Dec 2021 Strongly recommends
on HN thread Ask HN: Best Talks of 2021?
Robert Erdmann's keynote at PyCon: [this video] The talk centers around Erdmann's use of python in "combining materials science, computer science, and imaging science to help the world access, preserve, and understand its cultural heritage". The technical complexity and nuance that went into the project was truly jaw-dropping. This was the first talk I immediately felt the urge to share with multiple co-workers & friends.
Technically jaw-dropping talk on Python for heritage imaging.

Citations, criticism and jokes

@erdmann Jan 2022 Cites it
on HN thread Ultra High Resolution Photo of Night Watch (2022)
Glad to see this getting exposure on HN. I gave a PyCon keynote [1] last year about how this was done. I've also put the image online in my own viewer [2], which has a few additional features: it encodes the viewing location in the URL and it allows for multi-pane synchronized views [3]. (Please be nice to my server.) I'm happy to answer questions here or on Twitter (@erdmann). [1] [this video] [2] [link] [3] [link]
Author's own keynote on how the image was made.
@easytiger Jan 2022 Cites it
on HN thread 717 Gigapixel Image of Rembrandt's Nightwatch
Seminar on how it was done here by the author [link] [this video] 97 rows × 87 cols (8 439) @Hasselblad H6D-400c MS images Size: 925 000 px × 775 000 px (717 GP) Res: 5 µm (5080 ppi) It's a £43k camera on a huge automated gantry system controlled by python software
Seminar by the author on how it was done.
@zerd Jan 2022 Cites it
on HN thread 717 Gigapixel Image of Rembrandt's Nightwatch
In this video [1] he mentions that each 100mp image is around 600MB, which aligns with the size of the 4-shot multi-shot mode of the H6D-400C MS. 8439 photos 579MB would be around 4.7TB in raw format. [1] [this video] [2] [link]
Mentions each 100mp image is around 600MB.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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