How do I fix the Function 'subsindex' is not defined for values of class 'cell' in my code?

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chris oj
chris oj 2018-10-10
评论： Rena Berman 2018-11-7
The code below returns the error 'Function 'subsindex' is not defined for values of class 'cell'.'
Error in main_lameness_algo (line 93)
if (mean(Dprev(refimage{g,1})))<((refimage{g,2})+50) && ((refimage{g,2})-50)<(mean(Dprev(refimage{g,1})))
Please how can I fix it
refimage = cell(5,3);
n = 1;
while 1
n = n+1;
filename = ['f' num2str(n) '.txt'];
[A2]=importdata(filename);
B2 = reshape(A2,[512,424]);
C2 = transpose(B2);
rowstart2 = 1;
rowstop2 = 370;
colstart2 = 50;
colstop2 = 512;
D2 = C2(rowstart2:rowstop2,colstart2:colstop2);
D2(D2<1) = 2600;
D2(D2<2000) = 2600;
filenameprev = ['f' num2str(n-1) '.txt'];
[Aprev,delimiterOut]=importdata(filenameprev);
Bprev = reshape(Aprev,[512,424]);
Cprev = transpose(Bprev);
rowstartprev = 1;
rowstopprev = 370;
colstartprev = 50;
colstopprev = 512;
Dprev = Cprev(rowstartprev:rowstopprev,colstartprev:colstopprev);
Dprev(Dprev<1) = 2600;
Dprev(Dprev<2000) = 2600;
pigtime = 0;
thresholdValue2 = 0.7;
originalImage2 = mat2gray(D2,[1600 2600]);
binaryImage2 = originalImage2 < thresholdValue2; % Bright objects will be chosen if you use >.
binaryImage2 = imfill(binaryImage2, 'holes');
binaryImage2 = bwareaopen(binaryImage2,5000); %remove blobs less than certain pixels
labeledImage2 = bwlabel(binaryImage2, 8);
blobMeasurements2 = regionprops(labeledImage2, D2, 'all');
numberOfBlobs2 = size(blobMeasurements2, 1);
if numberOfBlobs2<1
continue
end
for g = 1 : numberOfBlobs2 % Loop through all blobs (sitting pigs).
thisBlobsPixels = blobMeasurements2(g).PixelIdxList; % Get list of pixels in current blob.
refimage{g,1} = {thisBlobsPixels};
thisBlobsPixvals = blobMeasurements2(g).PixelValues; % Get list of pixels values in current blob.
refimage{g,2} = {mean(thisBlobsPixvals)};
%refimage{g,3} = {pigtime};
if (mean(Dprev(refimage{g,1})))<((refimage{g,2})+50) && ((refimage{g,2})-50)<(mean(Dprev(refimage{g,1})))
refimage{g,3} = (refimage{g,3}) + 5;
end
end
if n ==20
break
end
end

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采纳的回答

Matt J
Matt J 2018-10-10
编辑：Matt J 2018-10-10
I think you mean to have,
refimage{g,1} = thisBlobsPixels;
refimage{g,2} = mean(thisBlobsPixvals);
%refimage{g,3} = pigtime;
In any case, the error message means you have tried to use a cell element to index into a numeric array, as in the following,
x=[5,6,7];
x({1}), %doesn't work

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