Fft texture: Difference between revisions
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imported>Scott (New page: ===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. ====...) |
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* '''plots''': [ 'none' | {'final'} ] governs level of plotting, | * '''plots''': [ 'none' | {'final'} ] governs level of plotting, | ||
===See Also=== | ===See Also=== | ||
[[autocor_img]], [[detrend_img]], [[semivar]], [[svd_texture]], [[texture]] | |||
Latest revision as of 09:33, 29 October 2009
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,