Erroe message ..... " not assigned during call to "

Question

Shivang Patel 2015-2-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/179027-erroe-message-not-assigned-during-call-to

评论： Shivang Patel 2015-2-18

采纳的回答： Michael Haderlein

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I can't understand, Why this error ? not assigned during call to

Anyone can explain !

My main file.....

for i = 1:d
  im = imgData(:,:,i);
  bw = binary(im);
  im = segmentation(bw);    
  imtool(im,[]);
end

segmentation.m fucntion code.....

function char  = segmentation( bwIMG )
      bwImg = bwareaopen(bwIMG,550); %%Remove all object containing fewer than 1 pixels
      [label, n]=bwlabel(bwImg);   %%Label connected components
      if (n == 1)
              [r,c] = find(label==n);
              n1=bwImg(min(r):max(r),min(c):max(c));            
              char = imresize(n1,[40 30]);          
      end
  end
 Error message in command prompt...

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Stephen23 2015-2-18

Please give us the complete error message, as our mind-reading ability is not so well developed.

Shivang Patel 2015-2-18

Sorry, Stephen... I forgot....

I upload a picture... for the error message... this error terminate the for loop in main file...

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Answer 1

Michael Haderlein 2015-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/179027-erroe-message-not-assigned-during-call-to#answer_168406

Whenever n is not 1, char will not be assigned. What's the purpose of the (n == 1) condition? Possibly it's supposed to be a loop instead so it will assign values to char for every object in your image?

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Shivang Patel 2015-2-18

if in image only one object then, I m trying as per above code... And whenever more then one object will detected... i have other procedure... So for that I used if condition...

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