Fft texture

Purpose

Calculates FFT for texture analysis.

Synopsis

y = fft_texture(x,options)

Description

FFT_TEXTURE can be used to characterize texture in a gray-scale image.

INPUTS

• x = MxN matrix (e.g and image layer).

OUTPUTS

• y = 2x1 cell array. Each cell contains a vector of the mean square root of the FFT power spectrum. Each cell corresponds to the FFT calculated for 2 directions
• y{1} is down the rows (top-to-bottom), and
• y{2} is down the columns (left-to-right).

Options

options is a structure is a structure array with the following fields:

• plots: [ 'none' | {'final'} ] governs level of plotting,

See Also

autocor_img, detrend_img, semivar, svd_texture, texture