Description Usage Arguments Value Examples
Calculate fft amplitude
1 | fft_amplitude(im, modify = FALSE, dc_value)
|
im |
an image |
modify |
if TRUE, amplitude value is log-rescaled, which is useful for plotting purpose |
dc_value |
if given, DC (direct current) component is replaced with this value |
an image
1 2 | amp = fft_amplitude(im_gray(regatta), modify = TRUE)
plot(amp)
|
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