How to display images from a cell array?

Question

fiona rozario 2017-5-31

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/342758-how-to-display-images-from-a-cell-array

评论： Image Analyst 2017-6-1

I have 5 images in a cell array 'imageshares' and I want to display them individually.

    figure
    image(imageshares{i}));

I used the above code and obviously this didn't work. How do I display the images?

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Matthew Eicholtz 2017-5-31

It would be helpful to see more of your code so we can properly diagnose the problem.

fiona rozario 2017-6-1

在 MATLAB Online 中打开

 f=imread('test2.jpg');
 red=f(:,:,1);
 green=f(:,:,2);
 blue=f(:,:,3);
 [r,c,d]=size(f);
 shred=zeros(r,c);
 shgreen=zeros(r,c);
 shblue=zeros(r,c);
 image=zeros(r,c);
 N = input('Number of pieces to break into ');
 rowgroups = diff( round(linspace(0,r,N+1)));
 rshares = mat2cell(red, rowgroups, size(red,2));
 gshares = mat2cell(green, rowgroups, size(green,2));
 bshares = mat2cell(blue, rowgroups, size(blue,2));
 imageshares=mat2cell(image, rowgroups, size(image,2));
 shredshares = mat2cell(shred, rowgroups, size(shred,2));
 shgreenshares = mat2cell(shgreen, rowgroups, size(shgreen,2));
 shblueshares = mat2cell(shblue, rowgroups, size(shblue,2));
 for i=1:N
    imageshares{i}=cat(3,rshares{i},gshares{i},bshares{i});
    figure
    image(imageshares{i});
  end

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Answer 1

Star Strider 2017-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/342758-how-to-display-images-from-a-cell-array#answer_269114

在 MATLAB Online 中打开

The subscript error is puzzling if ‘i=1:N’. One option is to change the loop counter variable to ‘k’ instead, since a few versions back, ‘i’ could default to the imaginary operator.

The imshow function could be a preferable option (with the index variable change):

figure
imshow(imageshares{k})

This is a guess on my part. If I guessed wrong, I will delete this Answer.

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fiona rozario 2017-6-1

I tried this but still got the same error.

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Answer 2

Image Analyst 2017-6-1

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/342758-how-to-display-images-from-a-cell-array#answer_269137

在 MATLAB Online 中打开

image is a built in function. Thus, this makes no sense:

imageshares=mat2cell(image, rowgroups, size(image,2));

and I don't know what you're doing with all that "shares" stuff. You read in one image, which has 3 color channels, so exactly what 5 images are you expecting to see?

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fiona rozario 2017-6-1

I entered the value of N as 5, which is the number of parts the matrix needs to be divided into. I need to divide the RGB components into parts or shares and then combine the individual components to form 5 images.

I changed the 'image' variable name and still got the same error.