pybsm.metrics.functional.relative_edge_response
- pybsm.metrics.functional.relative_edge_response(*, mtf_slice: ndarray, df: float, ifov: float) float
IBSM Equation 3-61. The slope of the edge response of the system taken at +/-0.5 pixels from a theoretical edge.
Edge response is used in the calculation of NIIRS via the General Image Quality Equation.
- Parameters:
mtf_slice – 1-D modulation transfer function (unitless) mtf[0] = 1 is at 0 cycles/radian
df – spatial frequency step size (cycles/radian)
ifov – instantaneous field-of-view of a detector (radians)
- Returns:
- rer:
relative edge response (unitless)