Analysis and Applications

Analyze segmented images, generate surfaces for medical imaging applications

Analyze preprocessed and segmented images to obtain quantitative information about the health of a patient. You can perform custom analyses by using functions for image arithmetic and calculating region properties, or perform state-of-the-art Radiomics analysis. Use analyzed images for applications such as research, 3-D printing, and finite element analysis.

Functions

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Radiomics

`radiomics`	Prepare data and ROI for radiomics feature extraction (Since R2023b)
`shapeFeatures`	Radiomics shape features (Since R2023b)
`intensityFeatures`	Radiomics intensity features (Since R2023b)
`textureFeatures`	Radiomics texture features (Since R2023b)

Extract Surfaces

`extractIsosurface`	Extract isosurface from volume using marching cubes algorithm (Since R2022b)
`dicomContours`	Extract ROI data from DICOM-RT structure set (Since R2020a)
`createMask`	Create volumetric mask from `dicomContours` object (Since R2020b)

Find, Select, and Label Objects in Binary Images

`bwconncomp`	Find and count connected components in binary image
`bwareaopen`	Remove small objects from binary image
`bwareafilt`	Extract objects from binary image by size
`bwpropfilt`	Extract objects from binary image using properties
`bwselect`	Select objects in binary image
`bwselect3`	Select objects in binary volume
`bwlabel`	Label connected components in 2-D binary image
`cc2bw`	Convert connected components to binary image (Since R2024a)
`labelmatrix`	Create label matrix from objects in connected components
`label2rgb`	Convert label matrix into RGB image
`poly2label`	Create label matrix from set of ROIs (Since R2020b)
`poly2mask`	Convert region of interest (ROI) polygon to region mask

Measure Properties of Image Regions

`regionprops`	Measure properties of image regions
`regionprops3`	Measure properties of 3-D volumetric image regions
`bwarea`	Area of objects in binary image
`bwconvhull`	Generate convex hull image from binary image
`bweuler`	Euler number of binary image
`bwferet`	Measure Feret properties
`bwperim`	Find perimeter of objects in binary image

Topics

Radiomics Analysis

Get Started with Radiomics
Learn about the concepts and uses of radiomics.
IBSI Standard and Radiomics Function Feature Correspondences
Discover the IBSI standards, and their MATLAB correspondences, for radiomics features.

Related Information

Image Segmentation and Analysis

Featured Examples

New

Interactively Segment and Analyze ROI Using MedSAM and Radiomics

Perform interactive segmentation of an object in a region of interest (ROI) of an image using the Medical Segment Anything Model (MedSAM) and analyze the segmented object using radiomics.

Since R2024b
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New

Segment and Analyze Brain MRI Scan Using AI

Preprocess, label, postprocess, and analyze a brain MRI image using MONAI Label.

Since R2024a
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Classify Breast Tumors from Ultrasound Images Using Radiomics Features

Use radiomics features to classify breast tumors as benign or malignant from breast ultrasound images.

Open Live Script

Compute Functional Connectivity from Brain fMRI

Compute resting state networks from resting-state fMRI (R-fMRI) using seed-based cross-correlation with seeds labeled in the Medical Image Labeler app.

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Analyze Vertebral Bone Density in Segmented CT Scan

Perform quantitative CT analysis to measure bone volume and bone mineral density within a vertebra.

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Estimate Lung Displacement Field During Breathing Using Deformable Image Registration

Uses deformable image registration to estimate the displacement field between two CT scans acquired during inhalation and exhalation for the same patient.

Open Live Script

Create STL Surface Model of Femur Bone for 3-D Printing

Convert a segmentation mask from a CT image into an STL surface model suitable for 3-D printing.

Open Live Script

Create and Display 3-D Mask of DICOM-RT Contour Data

Create a binary mask of ROI data stored in the metadata of a DICOM-RT structure set file, and display the mask as an overlay on the underlying image data.