如何解决'未定义的函数或变量'

Question

当我运行下面的代码时，我总是收到错误'未定义函数或变量'Test_x'。为什么我收到此错误？

下面是我到目前为止，

for D=max(max(X))       % Find max value     
    if D >= 5      % For only when at least one value >= the threshold 

    sumx=conv2(X,kernel,'same');   % Compute the sum of neighbors for each pixel 
    nx=conv2(double(X>0),kernel,'same'); % Compute the number of non-zero neighbors   
    avg_x=X; 
    avg_x(avg_x<5)=0;      
    index=(avg_x>=5);      % Find logical index of pixels >=40 
    avg_x(index)=sumx(index)./max(nx(index),1); % Center or average of the nonzeros 
    avg_x1=(avg_x>0); 

    tmp_x=avg_x; 
    maxVal=max(avg_x(:))+1; 
    tmp_x(tmp_x==0)=maxVal; % Replace all the zeros in the tmp_Z1 with a larger value 
    tmp_x=imerode(tmp_x,kernel); 

    Test_x=X>=tmp_x;      % Put one wherever new_Z1(k)>=tmp_Z1(k) 
    Test=Test_x+avg_x1;     
    Test_X=(Test>0); 

    elseif D<5        % Use when there is no value >= threshold 
     Test_X=Test_x.*avg_x1;    % Give Zero matrix 

    end 
end 

感谢您对您的所有帮助:)

Answer 1

您将得到错误??? Undefined function or variable 'Test_x'.在你的代码如果D初始值小于5以上，在这种情况下，您的代码将执行最后一行Test_X=Test_x.*avg_x1;，而无需先将Test_x设置为任何内容。你也必须初始化avg_x1，否则你会得到同样的错误。