Gabor Wavelet Pyramid

Generates a filter bank of spatially oriented sinusoidal grating multiplied by a Gaussian window. Filters are created at custom scales in all possible positions within an fxf grid where f is the spatial frequency. Minimal spatial frequency is set to one cycle per base scale. Wavelet tails are truncated to limit their scope by a custom threshold. Filters are zscored within their non-truncated scope.
Gabor functions have been used to model simple cell receptive fields and are commonly used filters for edge detection.
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