Error with function duplicate name where there is only one function.

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Hello

Matlab tries to call a function with the name "SegmentBone" as you can see from the example but I get the error of duplicate name and that Matlab cannot define it. There is only one SegmentBone.m in the folder. Why duplicate name?

Error: File: SegmentBone.m Line: 7 Column: 18
Function with duplicate name "SegmentBone" cannot be defined.
Error in Test1 (line 38)
imSeg = SegmentBone(im, 10e6, 0.031);

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Stelios Fanourakis 2019-6-18

在 MATLAB Online 中打开

I use that code. There is no SegmentBone.m in the same script anywhere else or in the working folder.

% Apply the bone segmentation to test image and show the results
clc
close all
clear all
 
path = imread('2A.bmp');
imROIminX = 159;
imROImaxX = 536;
imROIminY = 33;
imROImaxY = 410;
% path = 'Z:\Data\Cadaver_Experiment_2\Data\MaleCadaver\1\center\im';
% imROIminX = 159;
% imROImaxX = 536;
% imROIminY = 33;
% imROImaxY = 410;
 
i = 69; %81;
lp = sprintf('%s%04d.bmp', path, i);
im = imread('2A.bmp');
%%
% 
%   for x = 1:10
% 
%   for x = 1:10
%       disp(x)
%   end
% 
%       disp(x)
%   end
% 
im = im(imROIminY:imROImaxY, imROIminX:imROImaxX);
im = im2double(im);
[imH, imW] = size(im);
% im = flipdim(im,2);
figure, imshow(im);
 
tic
imSeg = SegmentBone(im, 10e6, 0.031);
toc
 
% figure, imshow(imSeg)
 
im4 = imresize(im,size(imSeg));
% subplot(1,2,1), imshow(im4)
% subplot(1,2,2), imshow(imSeg)
 
[BoneIdx] = find(imSeg>0);
imOverlapped = im4;
imOverlapped(BoneIdx) = 1;
figure, imshow(imOverlapped)
 
% imwrite(im4,'results\5_original.bmp','bmp');
% imwrite(imOverlapped,'results\T9SegIM.bmp','bmp');

Stelios Fanourakis 2019-6-18

编辑：Stelios Fanourakis 2019-6-18

在 MATLAB Online 中打开

1) Yes it's the correct function

This is the SegmentBone.m function. It starts at line 7 where all the previous lines are comments in green

function imSeg = SegmentBone(USimage, USfreq, USdepth)
 
[imH, imW] = size(USimage);
 
% calculate the segmentation parameters from US image parameters
boneTh = 1/8;   % used for masking
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Downsampling
DownSampleFactor = 4;
% filter
Gsigma = 6;
hsize = floor(Gsigma*3)*2+1;
h = fspecial('gaussian', hsize, Gsigma);
imBlured = imfilter(USimage, h, 'replicate', 'same');
imBlured = imBlured(1:DownSampleFactor:imH,1:DownSampleFactor:imW);
imBlured = AdjustContrast(imBlured);
figure, imshow(imBlured)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
h = [0 -1 0; -1 4 -1; 0 -1 0];
imBLOG = imfilter(imBlured, h, 'replicate', 'same');
imBLOG = (imBLOG>0).*imBLOG;
imBLOG = imBLOG/max(imBLOG(:));
figure, imshow(imBLOG)
 
% To make the algorithm faster, keep track of the points that are probable
% to be the bone surface
% First: Apply the threshold to the image (this is a loose threshold)
imMask = (imBlured >= boneTh);
[imH, imW] = size(imMask);
BorderRigeon = round((0.002/USdepth)*imH);
imMask(1:BorderRigeon,:) = 0;
 
% calculate the weight for underneath shadowness
Wshw = CalcBoneShadow(imMask, imBlured);
figure, imshow(Wshw);
 
% calculate the intensity weight
Wint = imMask .* (imBlured+imBLOG);
Wint = AdjustContrast(Wint);
figure, imshow(Wint);
 
 
% calculate the total Boniness, (Multipication prefered over addition) 
Bness = Wshw.*Wint;
Bness = Bness/max(Bness(:)); % normalize
figure, imshow(Bness);
% imwrite(Bness, 'results\cadaver_2_50_Bness.bmp', 'bmp');
% Find bone surface using Dynamic Programming
% Smoothness will be applied through DP
% Presence of bone will be also determined using DP
% imSeg = FindBoneDP(Bness);
F0 = 50.0;  F1 = 100.0;  Bth = 0.55;  % bone threshold between 0 and 1
JumpConst = 1.5;
% imSeg = FindBoneDP(Bness,F0,F1,Bth,JumpConst);
imSeg = SegmentBoneDP(Bness,F0,F1,Bth,JumpConst);
 
end

Stelios Fanourakis 2019-6-18

在 MATLAB Online 中打开

I use the line

mex SegmentBone.cpp

This should do the compiling from cpp to Mex. However, I get the error

mex SegmentBoneDP.cpp
Building with 'Xcode Clang++'.
Error using mex
/Users/steliosphanourakes/Desktop/Matlab/DesMoines/karadokei -
Copy/FANOURAKIS_STELIOS12/20190516144930/SegmentBoneDP.cpp:17:17: error: assigning to 'const int *' from
incompatible type 'const mwSize *' (aka 'const unsigned long *')
    DimsBness = mxGetDimensions(prhs[0]);
                ^~~~~~~~~~~~~~~~~~~~~~~~
/Applications/MATLAB_R2018b.app/extern/include/matrix.h:243:25: note: expanded from macro 'mxGetDimensions'
#define mxGetDimensions mxGetDimensions_730
                        ^
/Users/steliosphanourakes/Desktop/Matlab/DesMoines/karadokei -
Copy/FANOURAKIS_STELIOS12/20190516144930/SegmentBoneDP.cpp:30:15: error: no matching function for call to
'mxCreateNumericArray_730'
    plhs[0] = mxCreateNumericArray(2,DimsBness,mxDOUBLE_CLASS,mxREAL);
              ^~~~~~~~~~~~~~~~~~~~
/Applications/MATLAB_R2018b.app/extern/include/matrix.h:275:30: note: expanded from macro 'mxCreateNumericArray'
#define mxCreateNumericArray mxCreateNumericArray_730
                             ^~~~~~~~~~~~~~~~~~~~~~~~
/Applications/MATLAB_R2018b.app/extern/include/matrix.h:1247:1: note: candidate function not viable: no known
conversion from 'const int *' to 'const mwSize *' (aka 'const unsigned long *') for 2nd argument
mxCreateNumericArray(mwSize ndim, const mwSize *dims, mxClassID classid, mxComplexity flag);
^
/Applications/MATLAB_R2018b.app/extern/include/matrix.h:275:30: note: expanded from macro 'mxCreateNumericArray'
#define mxCreateNumericArray mxCreateNumericArray_730
                             ^
2 errors generated.
 

Anyone who can responsibly help me?

Thanks

Walter Roberson 2019-6-18

You duplicated that into another question. The volunteers are not fond of answering the same query in three different Questions.

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