downshift.m

来自「斯坦福大学的小波的工具箱 比matlab自带的工具箱更完善」· M 代码 · 共 32 行

function outimg = DownShift(matrix)
% DownShift -- Shift matrix down by one, move bottom line to the top.
%  Usage
%    outimg = DownShift(matrix);
%  Inputs   
%    matrix	a matrix
%  Outputs
%    outimg   	output image 
%  Examples
%    Test_DownShift.m
%  See Also
%    aconv2

[rows cols] = size(matrix);
outimg = zeros(rows, cols);
outimg(1,:) = matrix(rows,:);
outimg(2:rows,:) = matrix(1:(rows-1),:);

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% Copyright (c) 1996. Xiaoming Huo
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