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Texture Analysis

Entropy, range, and standard deviation filtering; create gray-level co-occurrence matrix

Functions

entropy Entropy of grayscale image
entropyfilt Local entropy of grayscale image
rangefilt Local range of image
stdfilt Local standard deviation of image
graycomatrix Create gray-level co-occurrence matrix from image
graycoprops Properties of gray-level co-occurrence matrix

Topics

Texture Analysis

Texture analysis characterizes the texture of a region by quantifying spatial variation in pixel intensities.

Detect Regions of Texture in Images

This example shows how to detect regions of texture in an image using the texture filter functions.

Texture Analysis Using the Gray-Level Co-Occurrence Matrix (GLCM)

The GLCM is a statistical method of examining texture that considers the spatial relationship of pixels.

Create a Gray-Level Co-Occurrence Matrix

To create a GLCM, use the graycomatrix function.

Specify Offset Used in GLCM Calculation

Create multiple GLCMs with different offsets to obtain additional information about textural features.

Derive Statistics from GLCM and Plot Correlation

This example shows how to create a set of GLCMs and derive statistics from them.

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