Rob Erdmann @erdmann
Full Prof. @UvA_Amsterdam. On a mission to help the world access, conserve, and understand its cultural heritage. boschproject.org Amsterdam, The Netherlands Joined November 2007-
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@RembrandtsRoom Thanks for the shout-out! Here's a live link (2013-ish) for those who want to play with it boschproject.org/Morelli/Hand.h… - Click a hand to re-sort. - Shift+click to select. - Type 1-9 to determine viewer column count then right-click to launch a synced viewer with the selection.
@CryptoBrawnz It's scientific documentation, so no AI scaling. Just very very close photos with robot and a Hasselblad H6D 400 MS. Here's a link to the PyCon 2020 keynote I gave about it: youtube.com/watch?v=z_hm5o…
I'm delighted to announce that the composite image of Rembrandt's Night Watch @rijksmuseum is now online for everyone to enjoy! hyper-resolution.org/Nightwatch 24 rows × 22 cols (528) @Hasselblad H6D-400c MS images Size: 231 250 px × 193 750 px (44.8 GP) Resolution: 20 µm (1270 ppi)
@gregeganSF Ah. I guess it's just an illusion that the lines seem to become increasingly parallel to the parallels even below the equator.
@gregeganSF Cool! These curves have decreasing angles with respect to lines of constant latitude. What does it look like at the south pole?
@openseadragon Thanks for the mention! I forked OpenSeadragon back in 2012 to enable the things I needed for image comparisons for my boschproject.org website (boschproject.org/view.html?mode…, e.g.), and the fork and OSD have diverged considerably since.
@HxxxKxxx @V_and_A @openseadragon @iiif_io Thanks! To be clear, there is only one "Curtain Viewer", not a family tree. These efforts by others to gain reputation/business by copying without credit are academically dishonest and, in the eyes of the Dutch legal system, unlawful. The Curtain Viewer isn't open source yet.
@HxxxKxxx @V_and_A @openseadragon @iiif_io When the Curtain Viewer was copied (with no credit!), a Dutch court ruled that the way of showing images (the "interface") was so innovative that it was also my copyright (source code too). See web.archive.org/web/2019113007…
@HxxxKxxx @V_and_A @openseadragon @iiif_io The Cuberis and vanda links you shared have nothing to do with my Curtain Viewer.
@kirkmart @rijksmuseum Indeed, when I'm not directly using memmaps in numpy, #pyvips is a big help. @jcupitt65 is very responsive fixing bugs and answering questions too, so it's a delight to be a user. #libvips can process huge images that no other image-processing engine can, and it's really fast.
New Year's Resolution: 5 µm The hyper-res image of Rembrandt's Night Watch @rijksmuseum is now online: hyper-resolution.org/Nightwatch5 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)
@RousBenjamin @rijksmuseum Also, see here for a thread with more information and several links to a smooth multi-pane viewer:
New Year's Resolution: 5 µm The hyper-res image of Rembrandt's Night Watch @rijksmuseum is now online: hyper-resolution.org/Nightwatch5 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)
@UvA_Humanities @rijksmuseum Also, see here for a thread with more information and several links to a multi-pane viewer:
New Year's Resolution: 5 µm The hyper-res image of Rembrandt's Night Watch @rijksmuseum is now online: hyper-resolution.org/Nightwatch5 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)
Note that this new image is 16 times bigger than the 20 µm resolution image we released in May 2020.
I'm delighted to announce that the composite image of Rembrandt's Night Watch @rijksmuseum is now online for everyone to enjoy! hyper-resolution.org/Nightwatch 24 rows × 22 cols (528) @Hasselblad H6D-400c MS images Size: 231 250 px × 193 750 px (44.8 GP) Resolution: 20 µm (1270 ppi)
Nearby, an easily resolved smalt (ground cobalt glass) pigment particle: hyper-resolution.org/view.html?mode…
@HxxxKxxx @HiroxEurope Thanks! It's not done with a Hirox, though. It's a Hasselblad H6D 400c MS camera on a 5-axis robot, with a lot of machine learning behind it to ensure sharp color-accurate photos every time.
@soyemecampuzano The PyCon keynote will hopefully answer your questions. If not, I'm happy to answer them here. youtube.com/watch?v=z_hm5o…
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