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Being a total art ignoramous but clearly interested in the technical aspects behind the site, I quickly googled the painting and learned that it was a triptych

by gjkood 8y ago

Being a total art ignoramous but clearly interested in the technical aspects behind the site, I quickly googled the painting and learned that it was a triptych (had to google that) whose dimensions were 87 in x 153 in. A few questions to anyone who can shed more light: 1. What would be the likely dimensions of the source image in pixels to reach such a zoomed level of detail? 2. What kind of camera equipment would I need to photograph such an image of similar size? Can I get away with a run of the mill DSLR such as Nikon D3400/D7500 or Canon EOS 80D? 3. What kind of lens is suitable? Macro? 4. What would be the process of photographing such an image? Taking a single high-res image or taking a series of high-res macro images under suitable lighting and stitching them together? 5. What would be the tools to host the image that would allow this kind of interactivity? I have a project in mind that could make use of the same technology.

Palomides 8y ago
it's probably a number of carefully lit shots with a phase one camera/back. if you are very careful with positioning you could stitch a bunch of shots with a cheaper camera. definitely read up on lighting art for photography, that's going to be critical. macro lens is probably not necessary. there are a variety of javascript-y things for dynamically viewing large images, shouldn't be /too/ hard to find or set up. edit: in this video, at 0:25 you can see the setup presumably used. https://vimeo.com/ondemand/jheronimusbosch/146311294 https://vimeo.com/ondemand/jheronimusbosch/146311294
tkp 8y ago
Had some success with this amateur setup to get a higher resolution image from multiple Nikon D90 photos : - take multiple zoomed-in low DOF overlapping photos, with fixed settings, covering the artwork from a tripod, only rotating the camera - stitch with Hugin[1] and export undistorted UHD photo - split the it into tiles according to your viewer's format with ImageMagick - view with a tile viewer. OpenSeaDragon[2] is smooth and well suited for UHD images, but any can be adapted/used, for example leaflet[3]. Would love to hear about other workflows ! The Bosch websites seems to use Micrio[4] for the UHD viewing and storytelling. [1] http://hugin.sourceforge.net/ http://hugin.sourceforge.net/ [2] https://openseadragon.github.io/ https://openseadragon.github.io/ [3] https://leafletjs.com https://leafletjs.com [4] https://micr.io/ https://micr.io/
- moron4hire 8y ago
  You should prefer to translate the image rather than rotate the camera. Rotation creates images that need to be spherically reprojected to get the rectangular image back out again. You end up losing resolution at the edges of the image, because they are further away from the camera than the center.
elorant 8y ago
As to the fourth question, here's a video that shows how a painting is photographed in order to produce a Giclee (aka a high res copy). https://www.youtube.com/watch?v=l3Do2MvtFAU https://www.youtube.com/watch?v=l3Do2MvtFAU

by gjkood 8y ago

Palomides 8y ago

it's probably a number of carefully lit shots with a phase one camera/back. if you are very careful with positioning you could stitch a bunch of shots with a cheaper camera. definitely read up on lighting art for photography, that's going to be critical. macro lens is probably not necessary. there are a variety of javascript-y things for dynamically viewing large images, shouldn't be /too/ hard to find or set up. edit: in this video, at 0:25 you can see the setup presumably used. https://vimeo.com/ondemand/jheronimusbosch/146311294 https://vimeo.com/ondemand/jheronimusbosch/146311294

tkp 8y ago

Had some success with this amateur setup to get a higher resolution image from multiple Nikon D90 photos : - take multiple zoomed-in low DOF overlapping photos, with fixed settings, covering the artwork from a tripod, only rotating the camera - stitch with Hugin[1] and export undistorted UHD photo - split the it into tiles according to your viewer's format with ImageMagick - view with a tile viewer. OpenSeaDragon[2] is smooth and well suited for UHD images, but any can be adapted/used, for example leaflet[3]. Would love to hear about other workflows ! The Bosch websites seems to use Micrio[4] for the UHD viewing and storytelling. [1] http://hugin.sourceforge.net/ http://hugin.sourceforge.net/ [2] https://openseadragon.github.io/ https://openseadragon.github.io/ [3] https://leafletjs.com https://leafletjs.com [4] https://micr.io/ https://micr.io/

moron4hire 8y ago
You should prefer to translate the image rather than rotate the camera. Rotation creates images that need to be spherically reprojected to get the rectangular image back out again. You end up losing resolution at the edges of the image, because they are further away from the camera than the center.

elorant 8y ago

As to the fourth question, here's a video that shows how a painting is photographed in order to produce a Giclee (aka a high res copy). https://www.youtube.com/watch?v=l3Do2MvtFAU https://www.youtube.com/watch?v=l3Do2MvtFAU