imgFFTHighPass: Apply a high pass filter on a fft matrix

In matiasb/biOps: Image processing and analysis

Description

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

Usage

imgFFTHighPass(fft_matrix, r)

Arguments

fft_matrix	The complex matrix of an fft transformation
r	The radius of the frequency filter

Value

return an imagedata

See Also

imgFFT imgFFTInv imgFFTLowPass imgFFTBandPass imgFFTBandStop

Examples

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

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