Warning: Can't synchronize with repository "(default)" (/home/git/ome.git does not appear to be a Git repository.). Look in the Trac log for more information.
Notice: In order to edit this ticket you need to be either: a Product Owner, The owner or the reporter of the ticket, or, in case of a Task not yet assigned, a team_member"

User Story #4001 (closed)

Opened 13 years ago

Closed 13 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 13 years ago.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 13 years ago by atarkowska

  • Owner set to atarkowska

comment:2 Changed 13 years ago by atarkowska

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

comment:3 Changed 13 years ago by atarkowska

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

comment:4 Changed 13 years ago by atarkowska

  • Cc wmoore cxallan added

comment:5 Changed 13 years ago by agilo

  • Status changed from new to accepted

Updated status, related task in progress

comment:6 Changed 13 years ago by atarkowska

  • Description modified (diff)

Changed 13 years ago by atarkowska

comment:7 Changed 13 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.

Note: See TracTickets for help on using tickets. You may also have a look at Agilo extensions to the ticket.

1.3.13-PRO © 2008-2011 Agilo Software all rights reserved (this page was served in: 0.129657 sec.)

We're Hiring!