shift2d¶
- image_registration.fft_tools.shift2d(data, deltax, deltay, phase=0, nthreads=1, use_numpy_fft=False, return_abs=False, return_real=True)[source]¶
2D version: obsolete - use ND version instead (though it’s probably easier to parse the source of this one)
FFT-based sub-pixel image shift. Will turn NaNs into zeros
Shift Theorem:
\[FT[f(t-t_0)](x) = e^{-2 \pi i x t_0} F(x)\]- Parameters:
- datanp.ndarray
2D image
- phasefloat
Phase, in radians