[英]how to resolve index exceeds matrix dimensions in matlab?
I am trying to read series of dicom images from a folder named as series 8.below is code to read series of dicom images from a particular folder.i am getting error index exceeds matrix dimensions at info = dicominfo(fullfile(fileFolder,fileNames{1}))
. 我正在尝试从名为series 8的文件夹中读取一系列dicom图像,下面是从特定文件夹中读取dicom图像系列的代码。我在info = dicominfo(fullfile(fileFolder,fileNames{1}))
。
clear all;
close all;
clc;
fileFolder = fullfile(pwd, 'series 8');
files = dir ( fullfile (fileFolder, '*.dcm'));
fileNames = {files.name};
%examine file header (metadata , from dicom stack)
info = dicominfo(fullfile(fileFolder,fileNames{1}))
%extract size info from metadata
voxelsize = [info.PixelSpacing;info.SliceThickness];
%read one file to get size
I = dicomread(fullfile(fileFolder,fileNames{1}))
classI = class(I);
sizeI = size(I);
numImages = length(fileNames);
%read slice images populate 3d matrix
hWaitBar = waitbar(0,'reading dicom files');
%create array
mri= zeroes(info.rows , info.columns , numImages , classI )
for i=length(fileNames):-1:1
fname = fullfile(fileFolder, fileNames{i});
mri(:,:,i) = unit16(dicomread(fname));
waitbar((length(fileNames)-i+1)/length(fileNames))
end
delete(hWaitBar);
Below two options that will do it. 下面有两个选项可以做到这一点。 In the first you create a loop around your whole approach and as filenames is zero when there is no dcm file the loop will not get executed. 在第一个方法中,您将围绕整个方法创建一个循环,并且当没有dcm文件时文件名将为零,则该循环将不会执行。 The second option tests whether files is empty and if so it is not executed. 第二个选项测试文件是否为空,如果为空,则不执行。
clear all;
close all;
clc;
fileFolder = fullfile(pwd, 'series 8');
files = dir ( fullfile (fileFolder, '*.dcm'));
fileNames = {files.name};
%examine file header (metadata , from dicom stack)
for i=length(fileNames):-1:1
if (i == 1)
info = dicominfo(fullfile(fileFolder,fileNames{i}));
%extract size info from metadata
voxelsize = [info.PixelSpacing;info.SliceThickness];
%read one file to get size
I = dicomread(fullfile(fileFolder,fileNames{i}));
classI = class(I);
sizeI = size(I);
numImages = length(fileNames);
%read slice images populate 3d matrix
hWaitBar = waitbar(0,'reading dicom files');
%create array
mri= zeroes(info.rows , info.columns , numImages , classI );
else
fname = fullfile(fileFolder, fileNames{i});
mri(:,:,i) = unit16(dicomread(fname));
waitbar((length(fileNames)-i+1)/length(fileNames))
end
end
delete(hWaitBar);
the second 第二
clear all;
close all;
clc;
fileFolder = fullfile(pwd, 'series 8');
files = dir ( fullfile (fileFolder, '*.dcm'));
fileNames = {files.name};
%examine file header (metadata , from dicom stack)
if ~isempty(files)
info = dicominfo(fullfile(fileFolder,fileNames{1}))
%extract size info from metadata
voxelsize = [info.PixelSpacing;info.SliceThickness];
%read one file to get size
I = dicomread(fullfile(fileFolder,fileNames{1}))
classI = class(I);
sizeI = size(I);
numImages = length(fileNames);
%read slice images populate 3d matrix
hWaitBar = waitbar(0,'reading dicom files');
%create array
mri= zeroes(info.rows , info.columns , numImages , classI )
for i=length(fileNames):-1:1
fname = fullfile(fileFolder, fileNames{i});
mri(:,:,i) = unit16(dicomread(fname));
waitbar((length(fileNames)-i+1)/length(fileNames))
end
delete(hWaitBar);
end
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