Array dimensions must match for binary array op.

2 次查看（过去 30 天）

Kat_33 2020-9-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/600298-array-dimensions-must-match-for-binary-array-op

评论： Kat_33 2020-9-26

%b
lake=imread('lake.tif');
lake_fft=fftshift(fft2(lake));
[M,N]=size(lake_fft);
lap_filt=zeros(M,N);
for i=1:M
    for j=1:N
        lap_filt(i,j)= -4*pi^2*((i-M/2)^2+(j-N/2)^2);
    end
end
lake_fft=lake_fft.*lap_filt;
lake_reconstruct=ifft2(ifftshift(lake_fft));
figure(1)
subplot(1,2,1);imshow(lake);title('Original Image')
subplot(1,2,2);imshow(lake_reconstruct,[]);title('Laplace frequency')

Im getting the following errors:

Array dimensions must match for binary array op.

(line 12)

lake_fft=lake_fft.*lap_filt;

not sure what the problem is and how it can be solved

whos lakess
  Name          Size                Bytes  Class    Attributes
  lakess      512x512x2            524288  uint8              

2 个评论
显示无隐藏无

Cris LaPierre 2020-9-26

No idea what lakess is. It's not used in your code.

Kat_33 2020-9-26

yeah its the same as lake in my code

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Cris LaPierre 2020-9-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/600298-array-dimensions-must-match-for-binary-array-op#answer_500854

The code runs just find for me. I don't have 'lake.tif', but I don't think that should matter.

Try clearing your workspace or restarting MATLAB.

Your image seems to have an unexpected 3rd dimension. I plot both below. All values in the second "sheet" are 255, resulting in a white image (hard to see that here since the page is white). I think you can ignore the second sheet.

lake = lake(:,:,1);

Here are the images:

imshow(lake(:,:,1))