Blocked Images
A very large image may not fit into memory, which makes it challenging
to display and process. The blockedImage
object solves this problem by representing an
image as a collection of smaller blocks of data that can be
independently loaded and processed. A blockedImage
object can support large images and images with one or multiple
resolution levels.
Functions
blockedImage | Image made from discrete blocks |
blockedImageDatastore | Datastore for use with blocks from blockedImage
objects |
blockLocationSet | List of block locations in large images |
selectBlockLocations | Select blocks from blocked images |
bigimageshow | Display 2-D blockedImage object |
showmask | Show mask overlay at specified inclusion threshold |
showlabels | Display label overlay on bigimageshow object |
apply | Process blocks of blocked image |
polyToBlockedImage | Create labeled blockedImage object from set of
ROIs |
Topics
- Set Up Spatial Referencing for Blocked Images
This example shows how to set up and verify the spatial referencing information of a
blockedImage
object. - Read Whole-Slide Images with Custom Blocked Image Adapter
This example shows how to add support for reading whole-slide images by creating a custom blocked image adapter.
- Label Large Images in the Image Labeler (Computer Vision Toolbox)
This section describes the differences with using the Image Labeler app with blocked images.