Imágenes divididas en bloques

Lea imágenes muy grandes y navegue por ellas

Una imagen muy grande podría no caber en la memoria disponible y, por lo tanto, ser difícil de mostrar y procesar. El objeto blockedImage ofrece una solución al problema: representa una imagen como un conjunto de bloques de datos más pequeños que pueden cargarse y procesarse de forma independiente. Un objeto blockedImage admite imágenes grandes con uno o varios niveles de resolución.

Funciones

`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

Temas

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.

Ejemplos destacados

Process Blocked Images Efficiently Using Partial Images or Lower Resolutions

Process a blocked image quickly using two strategies that enable computations on smaller representative samples of the high-resolution image.

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Process Blocked Images Efficiently Using Mask

Process a blocked image efficiently by using a mask to isolate regions of interest (ROIs).

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Create Labeled Blocked Image from ROIs and Masks

Create a labeled blocked image from a set of ROIs.

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Convert Image Labeler Polygons to Labeled Blocked Image for Semantic Segmentation

Convert polygon labels stored in a groundTruth object into a labeled blocked image suitable for semantic segmentation workflows.

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Work with Blocked Images Using Volume Segmenter

Work with a single-resolution blocked image in the Volume Segmenter app.

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Preprocess Multiresolution Images for Training Classification Network

Prepare datastores that read and preprocess multiresolution whole slide images (WSIs) that might not fit in memory.

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Classify Tumors in Multiresolution Blocked Images

Classify multiresolution whole slide images (WSIs) that might not fit in memory using an Inception-v3 deep neural network.

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Explore Blocked Image Details with Interactive ROIs

Display a detailed region of a blocked image selected interactively using ROI tools.

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Warp Blocked Image at Coarse and Fine Resolution Levels

Apply a geometric transformation (warping) to a blocked image.

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