mirror of
https://github.com/c-sooyoung/fold_slice.git
synced 2026-09-17 22:49:08 +09:00
79 lines
3.7 KiB
Matlab
79 lines
3.7 KiB
Matlab
% BINNING_3D - bin data along first three axis,
|
||
% x = binning_3D(x, binning, centered)
|
||
%
|
||
% Inputs:
|
||
% **x - original array, upsampling will be performed only along the first three axis, array size has to be dividable by binning size
|
||
% **binning - scalar or (3,1) array, positive integer binning factor
|
||
% *optional*
|
||
% **centered - default false, shift the binning by binning/2 offset
|
||
%
|
||
% returns:
|
||
% ++x - binned array
|
||
|
||
%*-----------------------------------------------------------------------*
|
||
%| |
|
||
%| Except where otherwise noted, this work is licensed under a |
|
||
%| Creative Commons Attribution-NonCommercial-ShareAlike 4.0 |
|
||
%| International (CC BY-NC-SA 4.0) license. |
|
||
%| |
|
||
%| Copyright (c) 2017 by Paul Scherrer Institute (http://www.psi.ch) |
|
||
%| |
|
||
%| Author: CXS group, PSI |
|
||
%*-----------------------------------------------------------------------*
|
||
% You may use this code with the following provisions:
|
||
%
|
||
% If the code is fully or partially redistributed, or rewritten in another
|
||
% computing language this notice should be included in the redistribution.
|
||
%
|
||
% If this code, or subfunctions or parts of it, is used for research in a
|
||
% publication or if it is fully or partially rewritten for another
|
||
% computing language the authors and institution should be acknowledged
|
||
% in written form in the publication: “Data processing was carried out
|
||
% using the “cSAXS matlab package” developed by the CXS group,
|
||
% Paul Scherrer Institut, Switzerland.”
|
||
% Variations on the latter text can be incorporated upon discussion with
|
||
% the CXS group if needed to more specifically reflect the use of the package
|
||
% for the published work.
|
||
%
|
||
% A publication that focuses on describing features, or parameters, that
|
||
% are already existing in the code should be first discussed with the
|
||
% authors.
|
||
%
|
||
% This code and subroutines are part of a continuous development, they
|
||
% are provided “as they are” without guarantees or liability on part
|
||
% of PSI or the authors. It is the user responsibility to ensure its
|
||
% proper use and the correctness of the results.
|
||
|
||
|
||
|
||
function x = binning_3D(x, binning, centered)
|
||
if all(binning == 1); return ; end
|
||
if nargin < 3
|
||
centered = false;
|
||
end
|
||
if ismatrix(x)
|
||
x = utils.binning_2D(x,binning, centered);
|
||
return
|
||
end
|
||
binning = reshape(binning,1,[]);
|
||
|
||
assert(ndims(x) == 3, 'Input has to be 3D array')
|
||
assert(all(mod(size(x),binning)==0), 'Array has to splitable by binning')
|
||
assert(all(size(x) >binning ), 'Array has to larger than binning')
|
||
|
||
Npix = size(x);
|
||
if isscalar(binning)
|
||
binning = repmat(binning,3,1);
|
||
end
|
||
|
||
if centered
|
||
% make the bins centered
|
||
x = x(ceil(binning(1)/2):end-ceil(binning(1)/2)-1, ceil(binning(2)/2):end-ceil(binning(2)/2)-1,ceil(binning(3)/2):end-ceil(binning(3)/2)-1);
|
||
Npix(1:3) = Npix(1:3) - reshape(binning,1,[]);
|
||
end
|
||
|
||
x = reshape(x,binning(1), Npix(1)/binning(1), binning(2), Npix(2)/binning(2), binning(3), Npix(3)/binning(3) );
|
||
x = squeeze(sum(sum(sum(x,1),3),5));
|
||
x = x / prod(binning);
|
||
|
||
end |