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IMP Reference Guide  develop.d36d3deffb,2026/11/09
The Integrative Modeling Platform
FFToperations.h File Reference

Operations involving FFT Copyright 2007-2026 IMP Inventors. All rights reserved. More...

#include <IMP/em2d/em2d_config.h>
#include "IMP/em2d/Matrix.h"
#include <IMP/log_macros.h>
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Namespaces

 IMP
 Base functionality and abstract base classes for representation, scoring and sampling.
 
 IMP::em2d
 Restraints using electron microscopy 2D images (class averages).
 

Functions

void IMP::em2d::do_matrix_to_image_flip (DoubleMatrix &m)
 
void IMP::em2d::get_autocorrelation2d (const DoubleMatrix &m, DoubleMatrix &corr)
 Computes the autocorrelation matrix. More...
 
void IMP::em2d::get_autocorrelation2d_no_preprocessing (const DoubleMatrix &M, DoubleMatrix &corr)
 Autocorrelation without preprocessing. More...
 
void IMP::em2d::get_correlation2d (const DoubleMatrix &A, const DoubleMatrix &B, DoubleMatrix &corr)
 Correlation matrix between two 2D matrices using FFT. More...
 
void IMP::em2d::get_correlation2d_no_preprocessing (const DoubleMatrix &M1, const DoubleMatrix &M2, DoubleMatrix &corr)
 Correlation without preprocessing. More...
 
void IMP::em2d::get_fft_using_optimal_size (const DoubleMatrix &m, DoubleMatrix &M)
 
int IMP::em2d::get_optimal_dft_size (int n)
 Get the smallest size >= n that can be transformed efficiently by FFT. More...
 
void IMP::em2d::get_spectrum (const DoubleMatrix &m, DoubleMatrix &real, DoubleMatrix &imag)
 Computes the fft of a matrix and returns the real and imaginary matrices. More...
 

Detailed Description

Operations involving FFT Copyright 2007-2026 IMP Inventors. All rights reserved.

Definition in file FFToperations.h.