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User Story #4001 (closed)

Opened 9 years ago

Closed 8 years ago

Big Image in Web viewer

Reported by: atarkowska Owned by:
Priority: critical Milestone: OMERO-Beta4.3
Component: Web Keywords: n.a.
Cc: wmoore, cxallan Story Points: n.a.
Sprint: n.a. Importance: n.a.
Total Remaining Time: 0.0d Estimated Remaining Time: n.a.

Description (last modified by atarkowska)

How image zoom technology works?

The most efficient way to provide high resolution image on the web can be achieved by making an "image pyramid" out of the source image and cut it into small tiles. Whenever the user requests a portion of the image only the needed tiles of a level are sent to the client's browser. However, since this tiles are loaded by the client's browser or can be accessed over http, they can be easily reassembled (stitched back together), thus restoring the entire original image.

Instead of sending the tiles directly to the browser it could put them first together on the server side and only then send the requested portion as one picture to the client. Neither the tiles nor the original image are ever loaded by the client. Optionally could crop from the original image without making the tiles.

Testing possible tiling solutions:

  • launch viewer
  • tiling
  • rendering tails
  • rendering thumbnail
  • split view
  • projection
  • bird's-eye view feature

Attachments (1)

Snapz Pro XScreenSnapz003.jpg (176.6 KB) - added by atarkowska 9 years ago.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 9 years ago by atarkowska

  • Owner set to atarkowska

comment:2 Changed 9 years ago by atarkowska

  • Owner atarkowska deleted
  • Sprint 2011-02-10 (5) deleted
  • Type changed from Task to User Story

comment:3 Changed 9 years ago by atarkowska

  • Summary changed from Big Image in Web investigation to Big Image in Web viewer

comment:4 Changed 9 years ago by atarkowska

  • Cc wmoore cxallan added

comment:5 Changed 9 years ago by agilo

  • Status changed from new to accepted

Updated status, related task in progress

comment:6 Changed 9 years ago by atarkowska

  • Description modified (diff)

Changed 9 years ago by atarkowska

comment:7 Changed 8 years ago by jmoore

  • Resolution set to fixed
  • Status changed from accepted to closed

Moving #4004 (split view) and #4005 (projections) to #5927 (big images phase 2) as stories.

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