pca byte

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Description

Principal Component Analysis

Compute the principal components of a three band byte image

NOTE: This function used to be called pca(). pca() is now a generic function that works on N band data, though it should maintain similar usage and return values.

Arguments and Return Values

Arguments: A numeric array

Return Value: The rotated data

Usage

Syntax: pca_byte(image)

'image' - A 3-band (z-dimension=3) numeric array

Examples

dv> a
600x600x3 array of byte, bip format [1,080,000 bytes]

dv> b=pca_byte(a)
  data: 600x600x3 array of double, bip format [8,640,000 bytes]

Images

Original Image

unfiltered.png

Three principal components

comp1.png comp2.png comp3.png

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Major Sub-Functions

Related Functions

Recent Library Changes

Created On: 02-09-2011
Modified On: 02-09-2011

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