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Unable to Dezoomify from IWM; dezoomified worked last year

Open BrokenBrainiac opened this issue 9 months ago • 1 comments

Example URL: https://www.iwm.org.uk/collections/item/object/16576

IWM seems to use both IIF and Seadragon Deepzoom.

Error message at dezoomify.ophir.dev when getting the URL from thre browser helper: "Error: Invalid JSON" ; and "Error: Unable to load the meta-information file"

If I try inputting the urls into the Desktop Client (Windows), I get 403 errors. I tried to create a Generic with {{X}}_{{Y}}.jpg at the end, but I also get 403 errors, even if I try VPNing. I can zoom in like normal in 2 browsers.

I don't have training in IT, so figuring out a solution is way beyond my ability. Is anyone else able to rip from IWM? I just want to confined that the issue isn't confined to me. Usually if an entry page on IWN only has a single image, it is LQ, but if there are 2 or more zoomables, at least 1 is a HQ.

Occasionally I get the click the box type captchas on IWM; could this be causing a problem (a sort of direct linking protection)?

Inputting the url of the dzi files also failed; the file I retrieved from anothe page only had the following:

<Image xmlns="http://schemas.microsoft.com/deepzoom/2008" TileSize="256" Overlap="0" Format="jpg"><Size Width="8254" Height="6712"/></Image>

The iif json had the following:

{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://media.iwm.org.uk/cantaloupe/iiif/2/158||283||super_000000.jpg","protocol":"http://iiif.io/api/image","width":1300,"height":1123,"sizes":[{"width":81,"height":70},{"width":163,"height":140},{"width":325,"height":281},{"width":650,"height":562},{"width":1300,"height":1123}],"tiles":[{"width":512,"height":512,"scaleFactors":[1,2,4,8,16]}],"profile":["http://iiif.io/api/image/2/level2.json",{"formats":["jpg","tif","gif","png"],"qualities":["bitonal","default","gray","color"],"supports": THE USUAL HERE"]}]}

BrokenBrainiac avatar Mar 10 '25 07:03 BrokenBrainiac