What is wrong in this code

Question

Poonam 2014-9-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/154476-what-is-wrong-in-this-code

回答： Pierre Benoit 2014-9-12

function [jaccard_Idx,jaccardDist]=jacarrd_coefficient(imgorig,imgseg)
{
    %check for logical image
if ~islogical(imgorig)
    error('Image must be logical');
end
    if ~islogical(imgseg)
            error('Image must be logical');
    end
        %find the intersection of both the  image
        inter_image=img_orig & img_seg;
        %find the union of both the image
        union_image=img_orig./img_seg;
        jaccard_Idx=sum(inter_image(:))./sum(union_image(:));
        jaccardDist=1-jaccard_Idx;
    }
getting following error

??? Error: File: jacarrd_coefficient.m Line: 4 Column: 1 Illegal use of reserved keyword "if".

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Answer 1

Pierre Benoit 2014-9-12

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/154476-what-is-wrong-in-this-code#answer_151450

在 MATLAB Online 中打开

You're not using the proper Matlab syntax for defining function, i.e. you don't need curly braces to define function. Just remove them and it should be fine.

function [jaccard_Idx,jaccardDist]=jacarrd_coefficient(imgorig,imgseg)
      %check for logical image
  if ~islogical(imgorig)
      error('Image must be logical');
  end
      if ~islogical(imgseg)
              error('Image must be logical');
      end
          %find the intersection of both the  image
          inter_image=img_orig & img_seg;
          %find the union of both the image
          union_image=img_orig./img_seg;
          jaccard_Idx=sum(inter_image(:))./sum(union_image(:));
          jaccardDist=1-jaccard_Idx;