How to display images based on the results from cell array?

Greetings. I have several images stored in cell array (1x9 cell). Then I want to calculate the intensity percentage for all the images. Once I obtained all the answers, then I arranged all the data from high to low values. The question is how can I display the first three images that contained the highest percentage values?

nfiles2 = length(jpeg_files); 
for k = 1:nfiles2
    currentimage{k} = imread(fullfile(folder,jpeg_files(k).name));
    newimg{k} = currentimage{k};
    R{k} = newimg{k}(:,:,1);
    G{k} = newimg{k}(:,:,2);
    B{k} = newimg{k}(:,:,3);
    redness{k} = double(R{k}) - max(double(G{k}), double (B{k}));
    opim{k} = uint8(redness{k});
    opim{k} = imfill(opim{k},'holes');
    opim{k} = bwareaopen(opim{k},200);
    R{k}(opim{k} == 0) = 0;
    G{k}(opim{k} == 0) = 0;
    B{k}(opim{k} == 0) = 0;
    segimg{k} = cat(3,R{k},G{k},B{k});
    calc1{k} = length(segimg{k}(segimg{k}~=0)); %number of pixel not black of img1
    img2{k} = currentimage{k}-segimg{k}; % obtain image that consists of negative objects & background
    calc2{k} = length(img2{k}(img2{k}~=0)); %number of pixel not black of img2
    percentIntensity{k} = (calc1{k}/(calc1{k}+calc2{k}))*100; %calculate intensity percentage
    [~,I] = sort(cell2mat(percentIntensity),'descend'); % arrange the data from high to low values
    out = percentIntensity(I);
end

Answer 1

[Walter Roberson]

%where is currentimage defined?

nfiles2 = length(jpeg_files); 
for k = 1:nfiles2
    segimg{k} = imread(fullfile(folder,jpeg_files(k).name)); % read all the segmented images
    calc1(k) = nnz(segimg{k}); %number of pixel not black of img1
    img2{k} = currentimage{k}-segimg{k}; % obtain image that consists of negative cells & background
    calc2(k) = nnz(img2{k}); %number of pixel not black of img2
    percentTumorIntensity(k) = (calc1(k)/(calc1(k)+calc2(k)))*100; %calculate intensity percentage
end
[out,I] = sort(percentTumorIntensity,'descend'); % arrange the data from high to low values

for K = 1 : 3
  subplot(1,3,K);
  imshow(segimg{I(K)});
  title(sprintf('% = %.2f', out(K)));
end

[Fahmi Akmal Dzulkifli]

Sir, I got this error message

Error using sort

Only one input argument is supported for cell arrays.

Error in HotSpot (line 74)

[out,I] = sort(percentTumorIntensity,'descend'); % arrange the data from high to low values

*** I have edited the coding to make it more clearly