Usage of ZIF ZoomifyImageFormat?

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Peter2
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Usage of ZIF ZoomifyImageFormat?

Post by Peter2 »

I found some file on our server with extension "TIF", but TRID ( https://mark0.net/soft-trid-e.html ) says it is an "ZIF ZoomifyImageFormatBitmap". I suppose it comes from drones and aerial view and sso on ..

Whta's this? Can it be used with XnView"?
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g8dhe
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Re: Usage of ZIF ZoomifyImageFormat?

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Geoff G8DHE
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Re: Usage of ZIF ZoomifyImageFormat?

Post by Peter2 »

Sorry, I lost the focus on this topic.

Yes, it seem to be from Zoomify, but nevertheless: Is there a way to view it with XnView?
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g8dhe
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Re: Usage of ZIF ZoomifyImageFormat?

Post by g8dhe »

The individual images are normally simple JPG's with .jpg extension these are then concatenated to allow panning across the image at the Zoom level desired. It sounds like the original image was a .TIF and then normally below that will be images in Tier groups depending on the Zoom level desired when created. Each sub-image will be viewable in its own right in XnView but I doubt that XnView has the ability to concatenate the images to allow panning across them at the given zoom level. Nothing to stop you doing the concatenating in an editor and then outputting the highest resolution image that was originally used to create them.
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Re: Usage of ZIF ZoomifyImageFormat?

Post by Peter2 »

Thanks.
g8dhe wrote: Wed Nov 17, 2021 1:08 pm .... Nothing to stop you doing the concatenating in an editor and then outputting the highest resolution image that was originally used to create them.
How?
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XnTriq
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Re: Usage of ZIF ZoomifyImageFormat?

Post by XnTriq »


https://www.github.com/lovasoa/ZIF wrote:I was recently made aware that the ZIF file format is in fact a subset of BigTiff. For end users, what this means is that it can easily be opened by many image viewing and manipulation softwares (such as GIMP) by simply changing the file extension from .zif to .tiff.
xnview wrote: Thu May 25, 2017 3:58 pmit's a BigTIFF format, not supported by XnView

Results of my tests:
  • JPEGsnoop and Mediaextract pulled 169 “tiles” (JPEG/JFIF) from ZoomifyImageExample.zif.
  • Convertio transformed ZoomifyImageExample.zif into a ZIP archive containing 5 images (130×195 + 260×390 + 520×780 + 1040×1560 + 2080×3120).
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g8dhe
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Re: Usage of ZIF ZoomifyImageFormat?

Post by g8dhe »

Peter2 wrote: Wed Nov 17, 2021 3:06 pm Thanks.
g8dhe wrote: Wed Nov 17, 2021 1:08 pm .... Nothing to stop you doing the concatenating in an editor and then outputting the highest resolution image that was originally used to create them.
How?
Depends on your editor PaintShopPro has these facilities, you create a grid and assign individual images into the grid, the grid is created without spacing so that they all abut each other. These tools are often used for Slicing images to speed loading on the Web and then displaying the sliced image back as a single entity.
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Re: Usage of ZIF ZoomifyImageFormat?

Post by Peter2 »

XnTriq wrote: Wed Nov 17, 2021 8:15 pm [...
Results of my tests:
....
Thanks @XnTriq
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