Subscripted assignment dimension mismatch.

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Andrew Oldnall
Andrew Oldnall 2019-1-10
评论： Andrew Oldnall 2019-1-11
Hi there,
I'm writing a piece of code for facial recognition and i am getting the error message 'Subscripted assignment dimension mismatch.' on a certain section of the code;
faceDatabaseFeatures = zeros(size(faceDatabase,2)*faceDatabase(2).Count,4280);
featureCount = 1;
for i=1:size(faceDatabase,2)
for j = 1:faceDatabase(i).Count
faceDatabaseFeatures(featureCount,:) = extractHOGFeatures(read(faceDatabase(i),j));
faceDatabaseLabel{featureCount} = faceDatabase(i).Description;
featureCount = featureCount + 1;
end
personIndex{i} = faceDatabase(i).Description;
end
Under
faceDatabaseFeatures(featureCount,:) = extractHOGFeatures(read(faceDatabase(i),j));
I believe it is here that the problem is occuring but i cannot for the life of me see why it is giving me that error.
This is the image of my workspace, any help would be much apperciated.
Andrew
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Adam
Adam 2019-1-11
What does
which -all imageSet
show on that line if you put a breakpoint on that line and put the above on the command line?
Andrew Oldnall
Andrew Oldnall 2019-1-11
C:\Program Files\MATLAB\R2015a\toolbox\vision\vision\imageSet.m % imageSet constructor

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回答（1 个）

Jan
Jan 2019-1-11
编辑：Jan 2019-1-11
This is the answer concerning your comment https://www.mathworks.com/matlabcentral/answers/439201-subscripted-assignment-dimension-mismatch#comment_659392
I looks like it does show, which line is failing:
queryImage = sample(sample(person),j);
Use the debugger to examine the problem. Type this in the command window:
dbstop if error
Now run the code again. When it stops at this line, try this:
person
sample(person)
j
sample(sample(person),j)
What do you observe?
  1 个评论
Andrew Oldnall
Andrew Oldnall 2019-1-11
I still get this error when doing that;
Error using subsindex
Function 'subsindex' is not defined for values of class 'imageSet'

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