Description: NAME:
bpass
PURPOSE:
Implements a real-space bandpass filter which suppress
pixel noise and long-wavelength image variations while
retaining information of a characteristic size.
CATEGORY:
Image Processing
CALLING SEQUENCE:
res = bpass( image, lnoise, lobject )
INPUTS:
image: The two-dimensional array to be filtered.
lnoise: Characteristic lengthscale of noise in pixels.
Additive noise averaged over this length should
vanish. MAy assume any positive floating value.
lobject: A length in pixels somewhat larger than a typical
object. Must be an odd valued integer.
OUTPUTS:
res: filtered image.
PROCEDURE:
simple wavelet convolution yields spatial bandpass filtering.
NOTES:
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File list (Check if you may need any files):
a.txt
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