How can I solve this problem/Error ?

Question

Syed Zenith Rhyhan 2019-7-22

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/472735-how-can-i-solve-this-problem-error

评论： Walter Roberson 2019-7-22

O.P final.zip

When I execeute the given matlab project I faces the follwoing error when i run the com.m file.I attached the full project file O.P Final.Please help me anyone how can i resolve this problem?

Error Occured:

Error using .*

Matrix dimensions must agree.

Error in comp (line 20)

FPimg = TestMask.*NotTargetMask;

%%% Here com.m file will be given 
clc;
TargetImg=imread('tumor.jpg');
[L,path1]=uigetfile('*.jpg','select a input image');
str1=strcat(path1,L);
TestImg=imread(str1);
 
 [u v]=size(TargetImg);
 TPrate=zeros(1, u, 2); 
 FPrate=zeros(1, u, 2); 
  
 TargetMask = zeros(size(TargetImg));
 TargetMask = TargetImg >0;
 NotTargetMask = logical(1-TargetMask);
 
 TestMask = zeros(size(TestImg));
 TestMask= TestImg >0;
 
 FPimg = TestMask.*NotTargetMask;
 FP = sum(FPimg(:))
 
 TPimg = TestMask.*TargetMask;
 TP = sum(TPimg(:))
 
 FNimg = TargetMask-TPimg;
 FN = sum(FNimg(:))
 
 TNimg = 1- FPimg;
 TN =sum(TNimg(:))
 
 TPrate(1,:,1)=TP/(TP+FN);
 FPrate(1,:,1)=FP/(FP+TN);
 
 Sensitivity(1)= TP/(TP+FN)*100 
 Specificity(1)= TN/(TN+FP)*100 
 Accuracy(1)=(TP+TN)/(TP+TN+FN+FP)*100 
  TargetImg(TargetImg>0)=200;
%2. set second image non-zero values as 300
TestImg(TestImg>0)=300;
%3. set overlap area 100
OverlapImage = TestImg-TargetImg;
%4. count the overlap100 pixels
[r,c,v] = find(OverlapImage==100);
countOverlap100=size(r);
%5. count the image200 pixels
[r1,c1,v1] = find(TargetImg==100);
TargetImg_200=size(r1);
%6. count the image300 pixels
[r2,c2,v2] = find(TestImg==200);
TestImg_300=size(r2);
Similarity_index=(2*TP)/(2*TP+FP+FN)*100

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Walter Roberson 2019-7-22

tumor.jpg is not present in the .zip

Syed Zenith Rhyhan 2019-7-22

编辑：Syed Zenith Rhyhan 2019-7-22

Sorry Sir it will be test.jpg. I will update the file. But the problem will not be solved.

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Answer 1

Walter Roberson 2019-7-22

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/472735-how-can-i-solve-this-problem-error#answer_384159

test.jpg and tumor.jpg are both 128 x 128, but all of the other files in the directory are 256 x 256. You cannot multiply a 128 x 128 with a 256 by 256.

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Syed Zenith Rhyhan 2019-7-22

编辑：Syed Zenith Rhyhan 2019-7-22

The above screen shot error

Walter Roberson,Sir

Walter Roberson 2019-7-22

The above screen shot does not show me how many rows and columns and panes that the variables have. It shows me the error message, but does not tell me how large the variables are.

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