imgFFTBandPass: Apply a band pass filter on a fft matrix

In matiasb/biOps: Image processing and analysis

Description

This function returns the band passed filter on a fft matrix (this matrix should be shifted).

Usage

imgFFTBandPass(fft_matrix, r1, r2)

Arguments

fft_matrix	The complex matrix of an fft transformation
r1	The inner radius of the frequency filter
r2	The outer radius of the frequency filter

Value

return an imagedata

See Also

imgFFT imgFFTInv imgFFTLowPass imgFFTHighPass imgFFTBandStop

Examples

	## Not run: 
		x <- readJpeg(system.file("samples", "violet.jpg", package="biOps"))
		t <- imgFFT(x, FALSE)
		i <- imgFFTBandPass(t, 25, 70)
	
## End(Not run)

matiasb/biOps documentation built on May 21, 2019, 12:55 p.m.