What is wrong in this code

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".

Answer 1

[Pierre Benoit]

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;